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);
203 dpdk_enable_l4_csum_offload (dpdk_device_t * xd)
205 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
206 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
207 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD |
208 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
211 static clib_error_t *
212 dpdk_lib_init (dpdk_main_t * dm)
215 u32 mtu, max_rx_frame;
218 vlib_main_t *vm = vlib_get_main ();
219 vlib_thread_main_t *tm = vlib_get_thread_main ();
220 vnet_device_main_t *vdm = &vnet_device_main;
221 vnet_sw_interface_t *sw;
222 vnet_hw_interface_t *hi;
224 vlib_pci_addr_t last_pci_addr;
225 u32 last_pci_addr_port = 0;
226 vlib_thread_registration_t *tr_hqos;
229 u32 next_hqos_cpu = 0;
230 u8 af_packet_instance_num = 0;
231 last_pci_addr.as_u32 = ~0;
233 dm->hqos_cpu_first_index = 0;
234 dm->hqos_cpu_count = 0;
236 /* find out which cpus will be used for I/O TX */
237 p_hqos = hash_get_mem (tm->thread_registrations_by_name, "hqos-threads");
238 tr_hqos = p_hqos ? (vlib_thread_registration_t *) p_hqos[0] : 0;
240 if (tr_hqos && tr_hqos->count > 0)
242 dm->hqos_cpu_first_index = tr_hqos->first_index;
243 dm->hqos_cpu_count = tr_hqos->count;
246 vec_validate_aligned (dm->devices_by_hqos_cpu, tm->n_vlib_mains - 1,
247 CLIB_CACHE_LINE_BYTES);
249 nports = rte_eth_dev_count_avail ();
253 dpdk_log_notice ("DPDK drivers found no Ethernet devices...");
257 dpdk_log_notice ("DPDK drivers found %d ports...", nports);
259 if (dm->conf->enable_tcp_udp_checksum)
260 dm->buffer_flags_template &= ~(VNET_BUFFER_F_L4_CHECKSUM_CORRECT
261 | VNET_BUFFER_F_L4_CHECKSUM_COMPUTED);
263 /* vlib_buffer_t template */
264 vec_validate_aligned (dm->per_thread_data, tm->n_vlib_mains - 1,
265 CLIB_CACHE_LINE_BYTES);
266 for (i = 0; i < tm->n_vlib_mains; i++)
268 dpdk_per_thread_data_t *ptd = vec_elt_at_index (dm->per_thread_data, i);
269 clib_memset (&ptd->buffer_template, 0, sizeof (vlib_buffer_t));
270 ptd->buffer_template.flags = dm->buffer_flags_template;
271 vnet_buffer (&ptd->buffer_template)->sw_if_index[VLIB_TX] = (u32) ~ 0;
275 RTE_ETH_FOREACH_DEV(i)
279 struct rte_eth_dev_info dev_info;
280 struct rte_pci_device *pci_dev;
281 struct rte_eth_link l;
282 dpdk_portid_t next_port_id;
283 dpdk_device_config_t *devconf = 0;
284 vlib_pci_addr_t pci_addr;
287 if (!rte_eth_dev_is_valid_port(i))
290 rte_eth_link_get_nowait (i, &l);
291 rte_eth_dev_info_get (i, &dev_info);
293 if (dev_info.device == 0)
295 dpdk_log_notice ("DPDK bug: missing device info. Skipping %s device",
296 dev_info.driver_name);
300 pci_dev = dpdk_get_pci_device (&dev_info);
304 pci_addr.domain = pci_dev->addr.domain;
305 pci_addr.bus = pci_dev->addr.bus;
306 pci_addr.slot = pci_dev->addr.devid;
307 pci_addr.function = pci_dev->addr.function;
308 p = hash_get (dm->conf->device_config_index_by_pci_addr,
313 /* Create vnet interface */
314 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
315 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
316 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
317 xd->cpu_socket = (i8) rte_eth_dev_socket_id (i);
321 devconf = pool_elt_at_index (dm->conf->dev_confs, p[0]);
322 xd->name = devconf->name;
325 devconf = &dm->conf->default_devconf;
327 /* Handle interface naming for devices with multiple ports sharing same PCI ID */
329 ((next_port_id = rte_eth_find_next (i + 1)) != RTE_MAX_ETHPORTS))
331 struct rte_eth_dev_info di = { 0 };
332 struct rte_pci_device *next_pci_dev;
333 rte_eth_dev_info_get (next_port_id, &di);
334 next_pci_dev = di.device ? RTE_DEV_TO_PCI (di.device) : 0;
336 pci_addr.as_u32 != last_pci_addr.as_u32 &&
337 memcmp (&pci_dev->addr, &next_pci_dev->addr,
338 sizeof (struct rte_pci_addr)) == 0)
340 xd->interface_name_suffix = format (0, "0");
341 last_pci_addr.as_u32 = pci_addr.as_u32;
342 last_pci_addr_port = i;
344 else if (pci_addr.as_u32 == last_pci_addr.as_u32)
346 xd->interface_name_suffix =
347 format (0, "%u", i - last_pci_addr_port);
351 last_pci_addr.as_u32 = ~0;
355 last_pci_addr.as_u32 = ~0;
357 clib_memcpy (&xd->tx_conf, &dev_info.default_txconf,
358 sizeof (struct rte_eth_txconf));
360 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_IPV4_CKSUM)
362 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_IPV4_CKSUM;
363 xd->flags |= DPDK_DEVICE_FLAG_RX_IP4_CKSUM;
366 if (dm->conf->no_multi_seg)
368 xd->port_conf.txmode.offloads &= ~DEV_TX_OFFLOAD_MULTI_SEGS;
369 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME;
370 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
374 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
375 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
376 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_SCATTER;
377 xd->flags |= DPDK_DEVICE_FLAG_MAYBE_MULTISEG;
380 xd->tx_q_used = clib_min (dev_info.max_tx_queues, tm->n_vlib_mains);
382 if (devconf->num_tx_queues > 0
383 && devconf->num_tx_queues < xd->tx_q_used)
384 xd->tx_q_used = clib_min (xd->tx_q_used, devconf->num_tx_queues);
386 if (devconf->num_rx_queues > 1
387 && dev_info.max_rx_queues >= devconf->num_rx_queues)
389 xd->rx_q_used = devconf->num_rx_queues;
390 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
391 if (devconf->rss_fn == 0)
392 xd->port_conf.rx_adv_conf.rss_conf.rss_hf =
393 ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
396 u64 unsupported_bits;
397 xd->port_conf.rx_adv_conf.rss_conf.rss_hf = devconf->rss_fn;
398 unsupported_bits = xd->port_conf.rx_adv_conf.rss_conf.rss_hf;
399 unsupported_bits &= ~dev_info.flow_type_rss_offloads;
400 if (unsupported_bits)
401 dpdk_log_warn ("Unsupported RSS hash functions: %U",
402 format_dpdk_rss_hf_name, unsupported_bits);
404 xd->port_conf.rx_adv_conf.rss_conf.rss_hf &=
405 dev_info.flow_type_rss_offloads;
410 xd->flags |= DPDK_DEVICE_FLAG_PMD;
412 /* workaround for drivers not setting driver_name */
413 if ((!dev_info.driver_name) && (pci_dev))
414 dev_info.driver_name = pci_dev->driver->driver.name;
416 ASSERT (dev_info.driver_name);
422 #define _(s,f) else if (dev_info.driver_name && \
423 !strcmp(dev_info.driver_name, s)) \
424 xd->pmd = VNET_DPDK_PMD_##f;
430 xd->pmd = VNET_DPDK_PMD_UNKNOWN;
432 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
433 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
434 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
438 /* Drivers with valid speed_capa set */
439 case VNET_DPDK_PMD_E1000EM:
440 case VNET_DPDK_PMD_IGB:
441 case VNET_DPDK_PMD_IXGBE:
442 case VNET_DPDK_PMD_I40E:
443 case VNET_DPDK_PMD_ICE:
444 xd->port_type = port_type_from_speed_capa (&dev_info);
445 xd->supported_flow_actions = VNET_FLOW_ACTION_MARK |
446 VNET_FLOW_ACTION_REDIRECT_TO_NODE |
447 VNET_FLOW_ACTION_REDIRECT_TO_QUEUE |
448 VNET_FLOW_ACTION_BUFFER_ADVANCE |
449 VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP;
451 if (dm->conf->no_tx_checksum_offload == 0)
453 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
454 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
456 DPDK_DEVICE_FLAG_TX_OFFLOAD |
457 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
462 case VNET_DPDK_PMD_CXGBE:
463 case VNET_DPDK_PMD_MLX4:
464 case VNET_DPDK_PMD_MLX5:
465 case VNET_DPDK_PMD_QEDE:
466 case VNET_DPDK_PMD_BNXT:
467 xd->port_type = port_type_from_speed_capa (&dev_info);
471 case VNET_DPDK_PMD_IGBVF:
472 case VNET_DPDK_PMD_IXGBEVF:
473 case VNET_DPDK_PMD_I40EVF:
474 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
475 if (dm->conf->no_tx_checksum_offload == 0)
477 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
478 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
480 DPDK_DEVICE_FLAG_TX_OFFLOAD |
481 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
485 case VNET_DPDK_PMD_THUNDERX:
486 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
488 if (dm->conf->no_tx_checksum_offload == 0)
490 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
491 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
492 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD;
496 case VNET_DPDK_PMD_ENA:
497 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
498 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
501 case VNET_DPDK_PMD_DPAA2:
502 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
506 case VNET_DPDK_PMD_ENIC:
507 xd->port_type = port_type_from_link_speed (l.link_speed);
508 if (dm->conf->enable_tcp_udp_checksum)
509 dpdk_enable_l4_csum_offload (xd);
512 /* Intel Red Rock Canyon */
513 case VNET_DPDK_PMD_FM10K:
514 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
518 case VNET_DPDK_PMD_VIRTIO:
519 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
520 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
521 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
525 case VNET_DPDK_PMD_VMXNET3:
526 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
527 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
530 case VNET_DPDK_PMD_AF_PACKET:
531 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
532 xd->af_packet_instance_num = af_packet_instance_num++;
535 case VNET_DPDK_PMD_VIRTIO_USER:
536 xd->port_type = VNET_DPDK_PORT_TYPE_VIRTIO_USER;
539 case VNET_DPDK_PMD_VHOST_ETHER:
540 xd->port_type = VNET_DPDK_PORT_TYPE_VHOST_ETHER;
543 case VNET_DPDK_PMD_LIOVF_ETHER:
544 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
547 case VNET_DPDK_PMD_FAILSAFE:
548 xd->port_type = VNET_DPDK_PORT_TYPE_FAILSAFE;
549 xd->port_conf.intr_conf.lsc = 1;
552 case VNET_DPDK_PMD_NETVSC:
553 xd->port_type = port_type_from_link_speed (l.link_speed);
557 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
560 if (devconf->num_rx_desc)
561 xd->nb_rx_desc = devconf->num_rx_desc;
564 /* If num_rx_desc is not specified by VPP user, the current CPU is working
565 with 2M page and has no L3 cache, default num_rx_desc is changed to 512
566 from original 1024 to help reduce TLB misses.
568 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
569 && check_l3cache() == 0)
570 xd->nb_rx_desc = 512;
573 if (devconf->num_tx_desc)
574 xd->nb_tx_desc = devconf->num_tx_desc;
577 /* If num_tx_desc is not specified by VPP user, the current CPU is working
578 with 2M page and has no L3 cache, default num_tx_desc is changed to 512
579 from original 1024 to help reduce TLB misses.
581 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
582 && check_l3cache() == 0)
583 xd->nb_tx_desc = 512;
587 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
589 f64 now = vlib_time_now (vm);
591 rnd = (u32) (now * 1e6);
592 rnd = random_u32 (&rnd);
593 clib_memcpy (addr + 2, &rnd, sizeof (rnd));
598 rte_eth_macaddr_get (i, (void *) addr);
600 if (xd->tx_q_used < tm->n_vlib_mains)
601 dpdk_device_lock_init (xd);
604 xd->device_index = xd - dm->devices;
605 xd->per_interface_next_index = ~0;
607 /* assign interface to input thread */
610 if (devconf->hqos_enabled)
612 xd->flags |= DPDK_DEVICE_FLAG_HQOS;
615 if (devconf->hqos.hqos_thread_valid)
617 if (devconf->hqos.hqos_thread >= dm->hqos_cpu_count)
618 return clib_error_return (0, "invalid HQoS thread index");
620 cpu = dm->hqos_cpu_first_index + devconf->hqos.hqos_thread;
624 if (dm->hqos_cpu_count == 0)
625 return clib_error_return (0, "no HQoS threads available");
627 cpu = dm->hqos_cpu_first_index + next_hqos_cpu;
630 if (next_hqos_cpu == dm->hqos_cpu_count)
633 devconf->hqos.hqos_thread_valid = 1;
634 devconf->hqos.hqos_thread = cpu;
637 dpdk_device_and_queue_t *dq;
638 vec_add2 (dm->devices_by_hqos_cpu[cpu], dq, 1);
639 dq->device = xd->device_index;
643 error = ethernet_register_interface
644 (dm->vnet_main, dpdk_device_class.index, xd->device_index,
645 /* ethernet address */ addr,
646 &xd->hw_if_index, dpdk_flag_change);
651 * Ensure default mtu is not > the mtu read from the hardware.
652 * Otherwise rte_eth_dev_configure() will fail and the port will
654 * Calculate max_frame_size and mtu supported by NIC
656 if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
659 * This device does not support the platforms's max frame
660 * size. Use it's advertised mru instead.
662 max_rx_frame = dev_info.max_rx_pktlen;
663 mtu = dev_info.max_rx_pktlen - sizeof (ethernet_header_t);
667 /* VPP treats MTU and max_rx_pktlen both equal to
668 * ETHERNET_MAX_PACKET_BYTES, if dev_info.max_rx_pktlen >=
669 * ETHERNET_MAX_PACKET_BYTES + sizeof(ethernet_header_t)
671 if (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
672 sizeof (ethernet_header_t)))
674 mtu = ETHERNET_MAX_PACKET_BYTES;
675 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
678 * Some platforms do not account for Ethernet FCS (4 bytes) in
679 * MTU calculations. To interop with them increase mru but only
680 * if the device's settings can support it.
682 if (dpdk_port_crc_strip_enabled (xd) &&
683 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
684 sizeof (ethernet_header_t) +
692 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
693 mtu = ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
695 if (dpdk_port_crc_strip_enabled (xd) &&
696 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)))
703 if (xd->pmd == VNET_DPDK_PMD_FAILSAFE)
705 /* failsafe device numerables are reported with active device only,
706 * need to query the mtu for current device setup to overwrite
710 if (!rte_eth_dev_get_mtu (i, &dev_mtu))
713 max_rx_frame = mtu + sizeof (ethernet_header_t);
715 if (dpdk_port_crc_strip_enabled (xd))
722 /*Set port rxmode config */
723 xd->port_conf.rxmode.max_rx_pkt_len = max_rx_frame;
725 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->hw_if_index);
726 xd->sw_if_index = sw->sw_if_index;
727 vnet_hw_interface_set_input_node (dm->vnet_main, xd->hw_if_index,
728 dpdk_input_node.index);
730 if (devconf->workers)
734 clib_bitmap_foreach (i, devconf->workers, ({
735 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q++,
736 vdm->first_worker_thread_index + i);
740 for (q = 0; q < xd->rx_q_used; q++)
742 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q, /* any */
746 /*Get vnet hardware interface */
747 hi = vnet_get_hw_interface (dm->vnet_main, xd->hw_if_index);
749 /*Override default max_packet_bytes and max_supported_bytes set in
750 * ethernet_register_interface() above*/
753 hi->max_packet_bytes = mtu;
754 hi->max_supported_packet_bytes = max_rx_frame;
755 hi->numa_node = xd->cpu_socket;
758 if (dm->conf->no_tx_checksum_offload == 0)
759 if (xd->flags & DPDK_DEVICE_FLAG_TX_OFFLOAD && hi != NULL)
760 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD;
762 if (devconf->tso == DPDK_DEVICE_TSO_ON && hi != NULL)
764 /*tcp_udp checksum must be enabled*/
765 if ((dm->conf->enable_tcp_udp_checksum) &&
766 (hi->flags & VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD))
768 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO;
769 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_TSO |
770 DEV_TX_OFFLOAD_UDP_TSO;
773 clib_warning ("%s: TCP/UDP checksum offload must be enabled",
777 dpdk_device_setup (xd);
779 if (vec_len (xd->errors))
780 dpdk_log_err ("setup failed for device %U. Errors:\n %U",
781 format_dpdk_device_name, i,
782 format_dpdk_device_errors, xd);
784 if (devconf->hqos_enabled)
787 rv = dpdk_port_setup_hqos (xd, &devconf->hqos);
793 * A note on Cisco VIC (PMD_ENIC) and VLAN:
795 * With Cisco VIC vNIC, every ingress packet is tagged. On a
796 * trunk vNIC (C series "standalone" server), packets on no VLAN
797 * are tagged with vlan 0. On an access vNIC (standalone or B
798 * series "blade" server), packets on the default/native VLAN
799 * are tagged with that vNIC's VLAN. VPP expects these packets
800 * to be untagged, and previously enabled VLAN strip on VIC by
801 * default. But it also broke vlan sub-interfaces.
803 * The VIC adapter has "untag default vlan" ingress VLAN rewrite
804 * mode, which removes tags from these packets. VPP now includes
805 * a local patch for the enic driver to use this untag mode, so
806 * enabling vlan stripping is no longer needed. In future, the
807 * driver + dpdk will have an API to set the mode after
808 * rte_eal_init. Then, this note and local patch will be
813 * VLAN stripping: default to VLAN strip disabled, unless specified
814 * otherwise in the startup config.
817 vlan_off = rte_eth_dev_get_vlan_offload (xd->port_id);
818 if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
820 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
821 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
822 dpdk_log_info ("VLAN strip enabled for interface\n");
824 dpdk_log_warn ("VLAN strip cannot be supported by interface\n");
825 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_VLAN_STRIP;
829 if (vlan_off & ETH_VLAN_STRIP_OFFLOAD)
831 vlan_off &= ~ETH_VLAN_STRIP_OFFLOAD;
832 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
833 dpdk_log_warn ("set VLAN offload failed\n");
835 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP;
839 hi->max_packet_bytes = xd->port_conf.rxmode.max_rx_pkt_len
840 - sizeof (ethernet_header_t);
842 dpdk_log_warn ("hi NULL");
844 if (dm->conf->no_multi_seg)
845 mtu = mtu > ETHER_MAX_LEN ? ETHER_MAX_LEN : mtu;
847 rte_eth_dev_set_mtu (xd->port_id, mtu);
855 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
857 vlib_main_t *vm = vlib_get_main ();
860 int num_whitelisted = vec_len (conf->dev_confs);
861 vlib_pci_device_info_t *d = 0;
862 vlib_pci_addr_t *addr = 0, *addrs;
865 addrs = vlib_pci_get_all_dev_addrs ();
867 vec_foreach (addr, addrs)
869 dpdk_device_config_t * devconf = 0;
870 vec_reset_length (pci_addr);
871 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, addr, 0);
874 vlib_pci_free_device_info (d);
877 d = vlib_pci_get_device_info (vm, addr, &error);
880 clib_error_report (error);
884 if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
889 uword * p = hash_get (conf->device_config_index_by_pci_addr, addr->as_u32);
897 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
900 /* Enforce Device blacklist by vendor and device */
901 for (i = 0; i < vec_len (conf->blacklist_by_pci_vendor_and_device); i++)
904 vendor = (u16)(conf->blacklist_by_pci_vendor_and_device[i] >> 16);
905 device = (u16)(conf->blacklist_by_pci_vendor_and_device[i] & 0xFFFF);
906 if (d->vendor_id == vendor && d->device_id == device)
909 * Expected case: device isn't whitelisted,
914 /* Device is blacklisted */
915 pool_get (conf->dev_confs, devconf);
916 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
917 devconf - conf->dev_confs);
918 devconf->pci_addr.as_u32 = addr->as_u32;
919 devconf->is_blacklisted = 1;
922 else /* explicitly whitelisted, ignore the device blacklist */
928 if (d->vendor_id == 0x1af4 &&
929 (d->device_id == VIRTIO_PCI_LEGACY_DEVICEID_NET ||
930 d->device_id == VIRTIO_PCI_MODERN_DEVICEID_NET))
933 else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
936 * For vmxnet3 PCI, unless it is explicitly specified in the whitelist,
937 * the default is to put it in the blacklist.
941 pool_get (conf->dev_confs, devconf);
942 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
943 devconf - conf->dev_confs);
944 devconf->pci_addr.as_u32 = addr->as_u32;
945 devconf->is_blacklisted = 1;
948 /* all Intel network devices */
949 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
951 /* all Intel QAT devices VFs */
952 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
953 (d->device_id == 0x0443 || d->device_id == 0x18a1 || d->device_id == 0x19e3 ||
954 d->device_id == 0x37c9 || d->device_id == 0x6f55))
957 else if (d->vendor_id == 0x1137 &&
958 (d->device_id == 0x0043 || d->device_id == 0x0071))
961 else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
963 /* Amazon Elastic Network Adapter */
964 else if (d->vendor_id == 0x1d0f && d->device_id >= 0xec20 && d->device_id <= 0xec21)
966 /* Cavium Network Adapter */
967 else if (d->vendor_id == 0x177d && d->device_id == 0x9712)
969 /* Cavium FastlinQ QL41000 Series */
970 else if (d->vendor_id == 0x1077 && d->device_id >= 0x8070 && d->device_id <= 0x8090)
973 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1003 && d->device_id <= 0x1004)
978 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1013 && d->device_id <= 0x101a)
982 /* Broadcom NetXtreme S, and E series only */
983 else if (d->vendor_id == 0x14e4 &&
984 ((d->device_id >= 0x16c0 &&
985 d->device_id != 0x16c6 && d->device_id != 0x16c7 &&
986 d->device_id != 0x16dd && d->device_id != 0x16f7 &&
987 d->device_id != 0x16fd && d->device_id != 0x16fe &&
988 d->device_id != 0x170d && d->device_id != 0x170c &&
989 d->device_id != 0x170e && d->device_id != 0x1712 &&
990 d->device_id != 0x1713) ||
991 (d->device_id == 0x1604 || d->device_id == 0x1605 ||
992 d->device_id == 0x1614 || d->device_id == 0x1606 ||
993 d->device_id == 0x1609 || d->device_id == 0x1614)))
997 dpdk_log_warn ("Unsupported PCI device 0x%04x:0x%04x found "
998 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
1003 error = vlib_pci_bind_to_uio (vm, addr, (char *) conf->uio_driver_name);
1009 pool_get (conf->dev_confs, devconf);
1010 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
1011 devconf - conf->dev_confs);
1012 devconf->pci_addr.as_u32 = addr->as_u32;
1014 devconf->is_blacklisted = 1;
1015 clib_error_report (error);
1019 vec_free (pci_addr);
1020 vlib_pci_free_device_info (d);
1024 dpdk_bind_vmbus_devices_to_uio (dpdk_config_main_t * conf)
1026 clib_error_t *error;
1027 vlib_vmbus_addr_t *addrs, *addr = 0;
1029 addrs = vlib_vmbus_get_all_dev_addrs ();
1032 vec_foreach (addr, addrs)
1034 error = vlib_vmbus_bind_to_uio (addr);
1038 clib_error_report (error);
1044 static clib_error_t *
1045 dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr,
1046 unformat_input_t * input, u8 is_default)
1048 clib_error_t *error = 0;
1050 dpdk_device_config_t *devconf;
1051 unformat_input_t sub_input;
1055 devconf = &conf->default_devconf;
1059 p = hash_get (conf->device_config_index_by_pci_addr, pci_addr.as_u32);
1063 pool_get (conf->dev_confs, devconf);
1064 hash_set (conf->device_config_index_by_pci_addr, pci_addr.as_u32,
1065 devconf - conf->dev_confs);
1068 return clib_error_return (0,
1069 "duplicate configuration for PCI address %U",
1070 format_vlib_pci_addr, &pci_addr);
1073 devconf->pci_addr.as_u32 = pci_addr.as_u32;
1074 devconf->hqos_enabled = 0;
1075 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
1077 dpdk_device_config_hqos_default (&devconf->hqos);
1083 unformat_skip_white_space (input);
1084 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1086 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
1088 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
1090 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
1092 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
1094 else if (unformat (input, "name %s", &devconf->name))
1096 else if (unformat (input, "workers %U", unformat_bitmap_list,
1101 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
1103 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
1107 else if (unformat (input, "vlan-strip-offload off"))
1108 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
1109 else if (unformat (input, "vlan-strip-offload on"))
1110 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
1113 (input, "hqos %U", unformat_vlib_cli_sub_input, &sub_input))
1115 devconf->hqos_enabled = 1;
1116 error = unformat_hqos (&sub_input, &devconf->hqos);
1120 else if (unformat (input, "hqos"))
1122 devconf->hqos_enabled = 1;
1124 else if (unformat (input, "tso on"))
1126 devconf->tso = DPDK_DEVICE_TSO_ON;
1128 else if (unformat (input, "tso off"))
1130 devconf->tso = DPDK_DEVICE_TSO_OFF;
1132 else if (unformat (input, "devargs %s", &devconf->devargs))
1136 error = clib_error_return (0, "unknown input `%U'",
1137 format_unformat_error, input);
1145 if (devconf->workers && devconf->num_rx_queues == 0)
1146 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
1147 else if (devconf->workers &&
1148 clib_bitmap_count_set_bits (devconf->workers) !=
1149 devconf->num_rx_queues)
1151 clib_error_return (0,
1152 "%U: number of worker threads must be "
1153 "equal to number of rx queues", format_vlib_pci_addr,
1159 static clib_error_t *
1160 dpdk_log_read_ready (clib_file_t * uf)
1162 unformat_input_t input;
1169 uword len = vec_len (s);
1170 vec_resize (s, len + n_try);
1172 n = read (uf->file_descriptor, s + len, n_try);
1173 if (n < 0 && errno != EAGAIN)
1174 return clib_error_return_unix (0, "read");
1175 _vec_len (s) = len + (n < 0 ? 0 : n);
1178 unformat_init_vector (&input, s);
1180 while (unformat_user (&input, unformat_line, &line))
1182 dpdk_log_notice ("%v", line);
1186 unformat_free (&input);
1190 static clib_error_t *
1191 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
1193 clib_error_t *error = 0;
1194 dpdk_config_main_t *conf = &dpdk_config_main;
1195 vlib_thread_main_t *tm = vlib_get_thread_main ();
1196 dpdk_device_config_t *devconf;
1197 vlib_pci_addr_t pci_addr;
1198 unformat_input_t sub_input;
1199 uword default_hugepage_sz, x;
1202 int num_whitelisted = 0;
1207 u8 *huge_dir_path = 0;
1211 format (0, "%s/hugepages%c", vlib_unix_get_runtime_dir (), 0);
1213 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
1215 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1217 /* Prime the pump */
1218 if (unformat (input, "no-hugetlb"))
1220 vec_add1 (conf->eal_init_args, (u8 *) "--no-huge");
1223 else if (unformat (input, "enable-tcp-udp-checksum"))
1224 conf->enable_tcp_udp_checksum = 1;
1226 else if (unformat (input, "no-tx-checksum-offload"))
1227 conf->no_tx_checksum_offload = 1;
1229 else if (unformat (input, "decimal-interface-names"))
1230 conf->interface_name_format_decimal = 1;
1232 else if (unformat (input, "no-multi-seg"))
1233 conf->no_multi_seg = 1;
1235 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
1239 dpdk_device_config (conf, (vlib_pci_addr_t) (u32) ~ 1, &sub_input,
1247 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
1248 unformat_vlib_cli_sub_input, &sub_input))
1250 error = dpdk_device_config (conf, pci_addr, &sub_input, 0);
1257 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
1259 error = dpdk_device_config (conf, pci_addr, 0, 0);
1266 else if (unformat (input, "num-mem-channels %d", &conf->nchannels))
1267 conf->nchannels_set_manually = 0;
1268 else if (unformat (input, "num-crypto-mbufs %d",
1269 &conf->num_crypto_mbufs))
1271 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
1273 else if (unformat (input, "socket-mem %s", &socket_mem))
1275 else if (unformat (input, "no-pci"))
1278 tmp = format (0, "--no-pci%c", 0);
1279 vec_add1 (conf->eal_init_args, tmp);
1281 else if (unformat (input, "blacklist %x:%x", &vendor, &device))
1283 u32 blacklist_entry;
1284 if (vendor > 0xFFFF)
1285 return clib_error_return (0, "blacklist PCI vendor out of range");
1286 if (device > 0xFFFF)
1287 return clib_error_return (0, "blacklist PCI device out of range");
1288 blacklist_entry = (vendor << 16) | (device & 0xffff);
1289 vec_add1 (conf->blacklist_by_pci_vendor_and_device,
1292 else if (unformat (input, "no-vmbus"))
1295 tmp = format (0, "--no-vmbus%c", 0);
1296 vec_add1 (conf->eal_init_args, tmp);
1300 else if (unformat(input, #a)) \
1302 tmp = format (0, "--%s%c", #a, 0); \
1303 vec_add1 (conf->eal_init_args, tmp); \
1305 foreach_eal_double_hyphen_predicate_arg
1308 else if (unformat(input, #a " %s", &s)) \
1310 if (!strncmp(#a, "file-prefix", 11)) \
1312 tmp = format (0, "--%s%c", #a, 0); \
1313 vec_add1 (conf->eal_init_args, tmp); \
1315 if (!strncmp(#a, "vdev", 4)) \
1316 if (strstr((char*)s, "af_packet")) \
1317 clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
1318 vec_add1 (conf->eal_init_args, s); \
1320 foreach_eal_double_hyphen_arg
1323 else if (unformat(input, #a " %s", &s)) \
1325 tmp = format (0, "-%s%c", #b, 0); \
1326 vec_add1 (conf->eal_init_args, tmp); \
1328 vec_add1 (conf->eal_init_args, s); \
1330 foreach_eal_single_hyphen_arg
1333 else if (unformat(input, #a " %s", &s)) \
1335 tmp = format (0, "-%s%c", #b, 0); \
1336 vec_add1 (conf->eal_init_args, tmp); \
1338 vec_add1 (conf->eal_init_args, s); \
1339 conf->a##_set_manually = 1; \
1341 foreach_eal_single_hyphen_mandatory_arg
1343 else if (unformat (input, "default"))
1346 else if (unformat_skip_white_space (input))
1350 error = clib_error_return (0, "unknown input `%U'",
1351 format_unformat_error, input);
1356 if (!conf->uio_driver_name)
1357 conf->uio_driver_name = format (0, "auto%c", 0);
1359 default_hugepage_sz = clib_mem_get_default_hugepage_size ();
1362 clib_bitmap_foreach (x, tm->cpu_socket_bitmap, (
1366 /* preallocate at least 16MB of hugepages per socket,
1367 if more is needed it is up to consumer to preallocate more */
1368 n_pages = round_pow2 ((uword) 16 << 20, default_hugepage_sz);
1369 n_pages /= default_hugepage_sz;
1371 if ((e = clib_sysfs_prealloc_hugepages(x, 0, n_pages)))
1372 clib_error_report (e);
1378 tmp = format (0, "--file-prefix%c", 0);
1379 vec_add1 (conf->eal_init_args, tmp);
1380 tmp = format (0, "vpp%c", 0);
1381 vec_add1 (conf->eal_init_args, tmp);
1387 /* I'll bet that -c and -n must be the first and second args... */
1388 if (!conf->coremask_set_manually)
1390 vlib_thread_registration_t *tr;
1391 uword *coremask = 0;
1394 /* main thread core */
1395 coremask = clib_bitmap_set (coremask, tm->main_lcore, 1);
1397 for (i = 0; i < vec_len (tm->registrations); i++)
1399 tr = tm->registrations[i];
1400 coremask = clib_bitmap_or (coremask, tr->coremask);
1403 vec_insert (conf->eal_init_args, 2, 1);
1404 conf->eal_init_args[1] = (u8 *) "-c";
1405 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1406 conf->eal_init_args[2] = tmp;
1407 clib_bitmap_free (coremask);
1410 if (!conf->nchannels_set_manually)
1412 vec_insert (conf->eal_init_args, 2, 3);
1413 conf->eal_init_args[3] = (u8 *) "-n";
1414 tmp = format (0, "%d", conf->nchannels);
1415 vec_terminate_c_string (tmp);
1416 conf->eal_init_args[4] = tmp;
1419 if (no_pci == 0 && geteuid () == 0)
1420 dpdk_bind_devices_to_uio (conf);
1422 if (no_vmbus == 0 && geteuid () == 0)
1423 dpdk_bind_vmbus_devices_to_uio (conf);
1426 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1427 devconf->x = conf->default_devconf.x ;
1430 pool_foreach (devconf, conf->dev_confs, ({
1432 /* default per-device config items */
1433 foreach_dpdk_device_config_item
1435 /* copy vlan_strip config from default device */
1436 if (devconf->vlan_strip_offload == 0 &&
1437 conf->default_devconf.vlan_strip_offload > 0)
1438 devconf->vlan_strip_offload =
1439 conf->default_devconf.vlan_strip_offload;
1441 /* copy tso config from default device */
1444 /* copy tso config from default device */
1447 /* add DPDK EAL whitelist/blacklist entry */
1448 if (num_whitelisted > 0 && devconf->is_blacklisted == 0)
1450 tmp = format (0, "-w%c", 0);
1451 vec_add1 (conf->eal_init_args, tmp);
1452 if (devconf->devargs)
1454 tmp = format (0, "%U,%s", format_vlib_pci_addr, &devconf->pci_addr, devconf->devargs, 0);
1458 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1460 vec_add1 (conf->eal_init_args, tmp);
1462 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0)
1464 tmp = format (0, "-b%c", 0);
1465 vec_add1 (conf->eal_init_args, tmp);
1466 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1467 vec_add1 (conf->eal_init_args, tmp);
1474 /* set master-lcore */
1475 tmp = format (0, "--master-lcore%c", 0);
1476 vec_add1 (conf->eal_init_args, tmp);
1477 tmp = format (0, "%u%c", tm->main_lcore, 0);
1478 vec_add1 (conf->eal_init_args, tmp);
1482 clib_warning ("socket-mem argument is deprecated");
1484 /* NULL terminate the "argv" vector, in case of stupidity */
1485 vec_add1 (conf->eal_init_args, 0);
1486 _vec_len (conf->eal_init_args) -= 1;
1488 /* Set up DPDK eal and packet mbuf pool early. */
1490 int log_fds[2] = { 0 };
1491 if (pipe (log_fds) == 0)
1493 if (fcntl (log_fds[1], F_SETFL, O_NONBLOCK) == 0)
1495 FILE *f = fdopen (log_fds[1], "a");
1496 if (f && rte_openlog_stream (f) == 0)
1498 clib_file_t t = { 0 };
1499 t.read_function = dpdk_log_read_ready;
1500 t.file_descriptor = log_fds[0];
1501 t.description = format (0, "DPDK logging pipe");
1502 clib_file_add (&file_main, &t);
1512 vm = vlib_get_main ();
1514 /* make copy of args as rte_eal_init tends to mess up with arg array */
1515 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1516 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1517 conf->eal_init_args[i]);
1519 vec_terminate_c_string (conf->eal_init_args_str);
1521 dpdk_log_warn ("EAL init args: %s", conf->eal_init_args_str);
1522 ret = rte_eal_init (vec_len (conf->eal_init_args),
1523 (char **) conf->eal_init_args);
1525 /* lazy umount hugepages */
1526 umount2 ((char *) huge_dir_path, MNT_DETACH);
1527 rmdir ((char *) huge_dir_path);
1528 vec_free (huge_dir_path);
1531 return clib_error_return (0, "rte_eal_init returned %d", ret);
1533 /* main thread 1st */
1534 if ((error = dpdk_buffer_pools_create (vm)))
1541 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1544 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1546 vnet_main_t *vnm = vnet_get_main ();
1547 struct rte_eth_link prev_link = xd->link;
1549 u8 hw_flags_chg = 0;
1551 /* only update link state for PMD interfaces */
1552 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
1555 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1556 clib_memset (&xd->link, 0, sizeof (xd->link));
1557 rte_eth_link_get_nowait (xd->port_id, &xd->link);
1559 if (LINK_STATE_ELOGS)
1561 vlib_main_t *vm = vlib_get_main ();
1562 ELOG_TYPE_DECLARE (e) =
1565 "update-link-state: sw_if_index %d, admin_up %d,"
1566 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1575 ed = ELOG_DATA (&vm->elog_main, e);
1576 ed->sw_if_index = xd->sw_if_index;
1577 ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1578 ed->old_link_state = (u8)
1579 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
1580 ed->new_link_state = (u8) xd->link.link_status;
1583 if ((xd->link.link_duplex != prev_link.link_duplex))
1586 switch (xd->link.link_duplex)
1588 case ETH_LINK_HALF_DUPLEX:
1589 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1591 case ETH_LINK_FULL_DUPLEX:
1592 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1598 if (xd->link.link_speed != prev_link.link_speed)
1599 vnet_hw_interface_set_link_speed (vnm, xd->hw_if_index,
1600 xd->link.link_speed * 1000);
1602 if (xd->link.link_status != prev_link.link_status)
1606 if (xd->link.link_status)
1607 hw_flags |= VNET_HW_INTERFACE_FLAG_LINK_UP;
1612 if (LINK_STATE_ELOGS)
1614 vlib_main_t *vm = vlib_get_main ();
1616 ELOG_TYPE_DECLARE (e) =
1619 "update-link-state: sw_if_index %d, new flags %d",.format_args
1627 ed = ELOG_DATA (&vm->elog_main, e);
1628 ed->sw_if_index = xd->sw_if_index;
1629 ed->flags = hw_flags;
1631 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, hw_flags);
1636 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1638 clib_error_t *error;
1639 dpdk_main_t *dm = &dpdk_main;
1641 vlib_thread_main_t *tm = vlib_get_thread_main ();
1643 error = dpdk_lib_init (dm);
1646 clib_error_report (error);
1648 tm->worker_thread_release = 1;
1650 f64 now = vlib_time_now (vm);
1651 vec_foreach (xd, dm->devices)
1653 dpdk_update_link_state (xd, now);
1659 * check each time through the loop in case intervals are changed
1661 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1662 dm->link_state_poll_interval : dm->stat_poll_interval;
1664 vlib_process_wait_for_event_or_clock (vm, min_wait);
1666 if (dm->admin_up_down_in_progress)
1667 /* skip the poll if an admin up down is in progress (on any interface) */
1670 vec_foreach (xd, dm->devices)
1672 f64 now = vlib_time_now (vm);
1673 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1674 dpdk_update_counters (xd, now);
1675 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1676 dpdk_update_link_state (xd, now);
1685 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1686 .function = dpdk_process,
1687 .type = VLIB_NODE_TYPE_PROCESS,
1688 .name = "dpdk-process",
1689 .process_log2_n_stack_bytes = 17,
1693 static clib_error_t *
1694 dpdk_init (vlib_main_t * vm)
1696 dpdk_main_t *dm = &dpdk_main;
1697 clib_error_t *error = 0;
1699 /* verify that structs are cacheline aligned */
1700 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1701 "Cache line marker must be 1st element in dpdk_device_t");
1702 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1703 CLIB_CACHE_LINE_BYTES,
1704 "Data in cache line 0 is bigger than cache line size");
1705 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1706 "Cache line marker must be 1st element in frame_queue_trace_t");
1707 STATIC_ASSERT (RTE_CACHE_LINE_SIZE == 1 << CLIB_LOG2_CACHE_LINE_BYTES,
1708 "DPDK RTE CACHE LINE SIZE does not match with 1<<CLIB_LOG2_CACHE_LINE_BYTES");
1710 dpdk_cli_reference ();
1713 dm->vnet_main = vnet_get_main ();
1714 dm->conf = &dpdk_config_main;
1716 dm->conf->nchannels = 4;
1717 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1718 vec_add1 (dm->conf->eal_init_args, (u8 *) "--in-memory");
1720 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1721 dm->buffer_flags_template = (VLIB_BUFFER_TOTAL_LENGTH_VALID |
1722 VLIB_BUFFER_EXT_HDR_VALID |
1723 VNET_BUFFER_F_L4_CHECKSUM_COMPUTED |
1724 VNET_BUFFER_F_L4_CHECKSUM_CORRECT);
1726 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1727 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1729 dm->log_default = vlib_log_register_class ("dpdk", 0);
1734 VLIB_INIT_FUNCTION (dpdk_init);
1737 * fd.io coding-style-patch-verification: ON
1740 * eval: (c-set-style "gnu")