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 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 vlib_thread_registration_t *tr_hqos;
220 u32 next_hqos_cpu = 0;
221 u8 af_packet_instance_num = 0;
222 last_pci_addr.as_u32 = ~0;
224 dm->hqos_cpu_first_index = 0;
225 dm->hqos_cpu_count = 0;
227 /* find out which cpus will be used for I/O TX */
228 p_hqos = hash_get_mem (tm->thread_registrations_by_name, "hqos-threads");
229 tr_hqos = p_hqos ? (vlib_thread_registration_t *) p_hqos[0] : 0;
231 if (tr_hqos && tr_hqos->count > 0)
233 dm->hqos_cpu_first_index = tr_hqos->first_index;
234 dm->hqos_cpu_count = tr_hqos->count;
237 vec_validate_aligned (dm->devices_by_hqos_cpu, tm->n_vlib_mains - 1,
238 CLIB_CACHE_LINE_BYTES);
240 nports = rte_eth_dev_count_avail ();
244 dpdk_log_notice ("DPDK drivers found no Ethernet devices...");
248 dpdk_log_notice ("DPDK drivers found %d ports...", nports);
250 if (dm->conf->enable_tcp_udp_checksum)
251 dm->buffer_flags_template &= ~(VNET_BUFFER_F_L4_CHECKSUM_CORRECT
252 | VNET_BUFFER_F_L4_CHECKSUM_COMPUTED);
254 /* vlib_buffer_t template */
255 vec_validate_aligned (dm->per_thread_data, tm->n_vlib_mains - 1,
256 CLIB_CACHE_LINE_BYTES);
257 for (i = 0; i < tm->n_vlib_mains; i++)
259 dpdk_per_thread_data_t *ptd = vec_elt_at_index (dm->per_thread_data, i);
260 clib_memset (&ptd->buffer_template, 0, sizeof (vlib_buffer_t));
261 ptd->buffer_template.flags = dm->buffer_flags_template;
262 vnet_buffer (&ptd->buffer_template)->sw_if_index[VLIB_TX] = (u32) ~ 0;
266 RTE_ETH_FOREACH_DEV(i)
270 struct rte_eth_dev_info dev_info;
271 struct rte_pci_device *pci_dev;
272 struct rte_eth_link l;
273 dpdk_portid_t next_port_id;
274 dpdk_device_config_t *devconf = 0;
275 vlib_pci_addr_t pci_addr;
278 if (!rte_eth_dev_is_valid_port(i))
281 rte_eth_link_get_nowait (i, &l);
282 rte_eth_dev_info_get (i, &dev_info);
284 if (dev_info.device == 0)
286 dpdk_log_notice ("DPDK bug: missing device info. Skipping %s device",
287 dev_info.driver_name);
291 pci_dev = dpdk_get_pci_device (&dev_info);
295 pci_addr.domain = pci_dev->addr.domain;
296 pci_addr.bus = pci_dev->addr.bus;
297 pci_addr.slot = pci_dev->addr.devid;
298 pci_addr.function = pci_dev->addr.function;
299 p = hash_get (dm->conf->device_config_index_by_pci_addr,
304 /* Create vnet interface */
305 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
306 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
307 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
308 xd->cpu_socket = (i8) rte_eth_dev_socket_id (i);
312 devconf = pool_elt_at_index (dm->conf->dev_confs, p[0]);
313 xd->name = devconf->name;
316 devconf = &dm->conf->default_devconf;
318 /* Handle interface naming for devices with multiple ports sharing same PCI ID */
320 ((next_port_id = rte_eth_find_next (i + 1)) != RTE_MAX_ETHPORTS))
322 struct rte_eth_dev_info di = { 0 };
323 struct rte_pci_device *next_pci_dev;
324 rte_eth_dev_info_get (next_port_id, &di);
325 next_pci_dev = di.device ? RTE_DEV_TO_PCI (di.device) : 0;
327 pci_addr.as_u32 != last_pci_addr.as_u32 &&
328 memcmp (&pci_dev->addr, &next_pci_dev->addr,
329 sizeof (struct rte_pci_addr)) == 0)
331 xd->interface_name_suffix = format (0, "0");
332 last_pci_addr.as_u32 = pci_addr.as_u32;
333 last_pci_addr_port = i;
335 else if (pci_addr.as_u32 == last_pci_addr.as_u32)
337 xd->interface_name_suffix =
338 format (0, "%u", i - last_pci_addr_port);
342 last_pci_addr.as_u32 = ~0;
346 last_pci_addr.as_u32 = ~0;
348 clib_memcpy (&xd->tx_conf, &dev_info.default_txconf,
349 sizeof (struct rte_eth_txconf));
351 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_IPV4_CKSUM)
353 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_IPV4_CKSUM;
354 xd->flags |= DPDK_DEVICE_FLAG_RX_IP4_CKSUM;
357 if (dm->conf->no_multi_seg)
359 xd->port_conf.txmode.offloads &= ~DEV_TX_OFFLOAD_MULTI_SEGS;
360 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME;
361 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
365 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
366 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
367 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_SCATTER;
368 xd->flags |= DPDK_DEVICE_FLAG_MAYBE_MULTISEG;
371 xd->tx_q_used = clib_min (dev_info.max_tx_queues, tm->n_vlib_mains);
373 if (devconf->num_tx_queues > 0
374 && devconf->num_tx_queues < xd->tx_q_used)
375 xd->tx_q_used = clib_min (xd->tx_q_used, devconf->num_tx_queues);
377 if (devconf->num_rx_queues > 1
378 && dev_info.max_rx_queues >= devconf->num_rx_queues)
380 xd->rx_q_used = devconf->num_rx_queues;
381 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
382 if (devconf->rss_fn == 0)
383 xd->port_conf.rx_adv_conf.rss_conf.rss_hf =
384 ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
387 u64 unsupported_bits;
388 xd->port_conf.rx_adv_conf.rss_conf.rss_hf = devconf->rss_fn;
389 unsupported_bits = xd->port_conf.rx_adv_conf.rss_conf.rss_hf;
390 unsupported_bits &= ~dev_info.flow_type_rss_offloads;
391 if (unsupported_bits)
392 dpdk_log_warn ("Unsupported RSS hash functions: %U",
393 format_dpdk_rss_hf_name, unsupported_bits);
395 xd->port_conf.rx_adv_conf.rss_conf.rss_hf &=
396 dev_info.flow_type_rss_offloads;
401 xd->flags |= DPDK_DEVICE_FLAG_PMD;
403 /* workaround for drivers not setting driver_name */
404 if ((!dev_info.driver_name) && (pci_dev))
405 dev_info.driver_name = pci_dev->driver->driver.name;
407 ASSERT (dev_info.driver_name);
413 #define _(s,f) else if (dev_info.driver_name && \
414 !strcmp(dev_info.driver_name, s)) \
415 xd->pmd = VNET_DPDK_PMD_##f;
421 xd->pmd = VNET_DPDK_PMD_UNKNOWN;
423 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
424 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
425 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
429 /* Drivers with valid speed_capa set */
430 case VNET_DPDK_PMD_E1000EM:
431 case VNET_DPDK_PMD_IGB:
432 case VNET_DPDK_PMD_IXGBE:
433 case VNET_DPDK_PMD_I40E:
434 case VNET_DPDK_PMD_ICE:
435 xd->port_type = port_type_from_speed_capa (&dev_info);
436 xd->supported_flow_actions = VNET_FLOW_ACTION_MARK |
437 VNET_FLOW_ACTION_REDIRECT_TO_NODE |
438 VNET_FLOW_ACTION_REDIRECT_TO_QUEUE |
439 VNET_FLOW_ACTION_BUFFER_ADVANCE |
440 VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP;
442 if (dm->conf->no_tx_checksum_offload == 0)
444 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
445 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
447 DPDK_DEVICE_FLAG_TX_OFFLOAD |
448 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
453 case VNET_DPDK_PMD_CXGBE:
454 case VNET_DPDK_PMD_MLX4:
455 case VNET_DPDK_PMD_MLX5:
456 case VNET_DPDK_PMD_QEDE:
457 case VNET_DPDK_PMD_BNXT:
458 xd->port_type = port_type_from_speed_capa (&dev_info);
462 case VNET_DPDK_PMD_IGBVF:
463 case VNET_DPDK_PMD_IXGBEVF:
464 case VNET_DPDK_PMD_I40EVF:
465 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
466 if (dm->conf->no_tx_checksum_offload == 0)
468 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
469 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
471 DPDK_DEVICE_FLAG_TX_OFFLOAD |
472 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
476 case VNET_DPDK_PMD_THUNDERX:
477 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
479 if (dm->conf->no_tx_checksum_offload == 0)
481 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
482 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
483 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD;
487 case VNET_DPDK_PMD_ENA:
488 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
489 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
492 case VNET_DPDK_PMD_DPAA2:
493 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
497 case VNET_DPDK_PMD_ENIC:
498 xd->port_type = port_type_from_link_speed (l.link_speed);
501 /* Intel Red Rock Canyon */
502 case VNET_DPDK_PMD_FM10K:
503 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
507 case VNET_DPDK_PMD_VIRTIO:
508 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
509 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
510 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
514 case VNET_DPDK_PMD_VMXNET3:
515 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
516 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
519 case VNET_DPDK_PMD_AF_PACKET:
520 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
521 xd->af_packet_instance_num = af_packet_instance_num++;
524 case VNET_DPDK_PMD_VIRTIO_USER:
525 xd->port_type = VNET_DPDK_PORT_TYPE_VIRTIO_USER;
528 case VNET_DPDK_PMD_VHOST_ETHER:
529 xd->port_type = VNET_DPDK_PORT_TYPE_VHOST_ETHER;
532 case VNET_DPDK_PMD_LIOVF_ETHER:
533 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
536 case VNET_DPDK_PMD_FAILSAFE:
537 xd->port_type = VNET_DPDK_PORT_TYPE_FAILSAFE;
538 xd->port_conf.intr_conf.lsc = 1;
541 case VNET_DPDK_PMD_NETVSC:
542 xd->port_type = port_type_from_link_speed (l.link_speed);
546 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
549 if (devconf->num_rx_desc)
550 xd->nb_rx_desc = devconf->num_rx_desc;
553 /* If num_rx_desc is not specified by VPP user, the current CPU is working
554 with 2M page and has no L3 cache, default num_rx_desc is changed to 512
555 from original 1024 to help reduce TLB misses.
557 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
558 && check_l3cache() == 0)
559 xd->nb_rx_desc = 512;
562 if (devconf->num_tx_desc)
563 xd->nb_tx_desc = devconf->num_tx_desc;
566 /* If num_tx_desc is not specified by VPP user, the current CPU is working
567 with 2M page and has no L3 cache, default num_tx_desc is changed to 512
568 from original 1024 to help reduce TLB misses.
570 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
571 && check_l3cache() == 0)
572 xd->nb_tx_desc = 512;
576 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
578 f64 now = vlib_time_now (vm);
580 rnd = (u32) (now * 1e6);
581 rnd = random_u32 (&rnd);
582 clib_memcpy (addr + 2, &rnd, sizeof (rnd));
587 rte_eth_macaddr_get (i, (void *) addr);
589 if (xd->tx_q_used < tm->n_vlib_mains)
590 dpdk_device_lock_init (xd);
593 xd->device_index = xd - dm->devices;
594 xd->per_interface_next_index = ~0;
596 /* assign interface to input thread */
599 if (devconf->hqos_enabled)
601 xd->flags |= DPDK_DEVICE_FLAG_HQOS;
604 if (devconf->hqos.hqos_thread_valid)
606 if (devconf->hqos.hqos_thread >= dm->hqos_cpu_count)
607 return clib_error_return (0, "invalid HQoS thread index");
609 cpu = dm->hqos_cpu_first_index + devconf->hqos.hqos_thread;
613 if (dm->hqos_cpu_count == 0)
614 return clib_error_return (0, "no HQoS threads available");
616 cpu = dm->hqos_cpu_first_index + next_hqos_cpu;
619 if (next_hqos_cpu == dm->hqos_cpu_count)
622 devconf->hqos.hqos_thread_valid = 1;
623 devconf->hqos.hqos_thread = cpu;
626 dpdk_device_and_queue_t *dq;
627 vec_add2 (dm->devices_by_hqos_cpu[cpu], dq, 1);
628 dq->device = xd->device_index;
632 error = ethernet_register_interface
633 (dm->vnet_main, dpdk_device_class.index, xd->device_index,
634 /* ethernet address */ addr,
635 &xd->hw_if_index, dpdk_flag_change);
640 * Ensure default mtu is not > the mtu read from the hardware.
641 * Otherwise rte_eth_dev_configure() will fail and the port will
643 * Calculate max_frame_size and mtu supported by NIC
645 if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
648 * This device does not support the platforms's max frame
649 * size. Use it's advertised mru instead.
651 max_rx_frame = dev_info.max_rx_pktlen;
652 mtu = dev_info.max_rx_pktlen - sizeof (ethernet_header_t);
656 /* VPP treats MTU and max_rx_pktlen both equal to
657 * ETHERNET_MAX_PACKET_BYTES, if dev_info.max_rx_pktlen >=
658 * ETHERNET_MAX_PACKET_BYTES + sizeof(ethernet_header_t)
660 if (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
661 sizeof (ethernet_header_t)))
663 mtu = ETHERNET_MAX_PACKET_BYTES;
664 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
667 * Some platforms do not account for Ethernet FCS (4 bytes) in
668 * MTU calculations. To interop with them increase mru but only
669 * if the device's settings can support it.
671 if (dpdk_port_crc_strip_enabled (xd) &&
672 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
673 sizeof (ethernet_header_t) +
681 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
682 mtu = ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
684 if (dpdk_port_crc_strip_enabled (xd) &&
685 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)))
692 if (xd->pmd == VNET_DPDK_PMD_FAILSAFE)
694 /* failsafe device numerables are reported with active device only,
695 * need to query the mtu for current device setup to overwrite
699 if (!rte_eth_dev_get_mtu (i, &dev_mtu))
702 max_rx_frame = mtu + sizeof (ethernet_header_t);
704 if (dpdk_port_crc_strip_enabled (xd))
711 /*Set port rxmode config */
712 xd->port_conf.rxmode.max_rx_pkt_len = max_rx_frame;
714 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->hw_if_index);
715 xd->sw_if_index = sw->sw_if_index;
716 vnet_hw_interface_set_input_node (dm->vnet_main, xd->hw_if_index,
717 dpdk_input_node.index);
719 if (devconf->workers)
723 clib_bitmap_foreach (i, devconf->workers, ({
724 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q++,
725 vdm->first_worker_thread_index + i);
729 for (q = 0; q < xd->rx_q_used; q++)
731 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q, /* any */
735 /*Get vnet hardware interface */
736 hi = vnet_get_hw_interface (dm->vnet_main, xd->hw_if_index);
738 /*Override default max_packet_bytes and max_supported_bytes set in
739 * ethernet_register_interface() above*/
742 hi->max_packet_bytes = mtu;
743 hi->max_supported_packet_bytes = max_rx_frame;
744 hi->numa_node = xd->cpu_socket;
747 if (dm->conf->no_tx_checksum_offload == 0)
748 if (xd->flags & DPDK_DEVICE_FLAG_TX_OFFLOAD && hi != NULL)
749 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD;
751 if (devconf->tso == DPDK_DEVICE_TSO_ON && hi != NULL)
753 /*tcp_udp checksum must be enabled*/
754 if ((dm->conf->enable_tcp_udp_checksum) &&
755 (hi->flags & VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD))
757 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO;
758 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_TSO |
759 DEV_TX_OFFLOAD_UDP_TSO;
762 clib_warning ("%s: TCP/UDP checksum offload must be enabled",
766 dpdk_device_setup (xd);
768 if (vec_len (xd->errors))
769 dpdk_log_err ("setup failed for device %U. Errors:\n %U",
770 format_dpdk_device_name, i,
771 format_dpdk_device_errors, xd);
773 if (devconf->hqos_enabled)
776 rv = dpdk_port_setup_hqos (xd, &devconf->hqos);
782 * A note on Cisco VIC (PMD_ENIC) and VLAN:
784 * With Cisco VIC vNIC, every ingress packet is tagged. On a
785 * trunk vNIC (C series "standalone" server), packets on no VLAN
786 * are tagged with vlan 0. On an access vNIC (standalone or B
787 * series "blade" server), packets on the default/native VLAN
788 * are tagged with that vNIC's VLAN. VPP expects these packets
789 * to be untagged, and previously enabled VLAN strip on VIC by
790 * default. But it also broke vlan sub-interfaces.
792 * The VIC adapter has "untag default vlan" ingress VLAN rewrite
793 * mode, which removes tags from these packets. VPP now includes
794 * a local patch for the enic driver to use this untag mode, so
795 * enabling vlan stripping is no longer needed. In future, the
796 * driver + dpdk will have an API to set the mode after
797 * rte_eal_init. Then, this note and local patch will be
802 * VLAN stripping: default to VLAN strip disabled, unless specified
803 * otherwise in the startup config.
806 vlan_off = rte_eth_dev_get_vlan_offload (xd->port_id);
807 if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
809 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
810 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
811 dpdk_log_info ("VLAN strip enabled for interface\n");
813 dpdk_log_warn ("VLAN strip cannot be supported by interface\n");
814 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_VLAN_STRIP;
818 if (vlan_off & ETH_VLAN_STRIP_OFFLOAD)
820 vlan_off &= ~ETH_VLAN_STRIP_OFFLOAD;
821 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
822 dpdk_log_warn ("set VLAN offload failed\n");
824 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP;
828 hi->max_packet_bytes = xd->port_conf.rxmode.max_rx_pkt_len
829 - sizeof (ethernet_header_t);
831 dpdk_log_warn ("hi NULL");
833 if (dm->conf->no_multi_seg)
834 mtu = mtu > ETHER_MAX_LEN ? ETHER_MAX_LEN : mtu;
836 rte_eth_dev_set_mtu (xd->port_id, mtu);
844 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
846 vlib_main_t *vm = vlib_get_main ();
849 int num_whitelisted = vec_len (conf->dev_confs);
850 vlib_pci_device_info_t *d = 0;
851 vlib_pci_addr_t *addr = 0, *addrs;
854 addrs = vlib_pci_get_all_dev_addrs ();
856 vec_foreach (addr, addrs)
858 dpdk_device_config_t * devconf = 0;
859 vec_reset_length (pci_addr);
860 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, addr, 0);
863 vlib_pci_free_device_info (d);
866 d = vlib_pci_get_device_info (vm, addr, &error);
869 clib_error_report (error);
873 if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
878 uword * p = hash_get (conf->device_config_index_by_pci_addr, addr->as_u32);
886 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
889 /* Enforce Device blacklist by vendor and device */
890 for (i = 0; i < vec_len (conf->blacklist_by_pci_vendor_and_device); i++)
893 vendor = (u16)(conf->blacklist_by_pci_vendor_and_device[i] >> 16);
894 device = (u16)(conf->blacklist_by_pci_vendor_and_device[i] & 0xFFFF);
895 if (d->vendor_id == vendor && d->device_id == device)
898 * Expected case: device isn't whitelisted,
903 /* Device is blacklisted */
904 pool_get (conf->dev_confs, devconf);
905 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
906 devconf - conf->dev_confs);
907 devconf->pci_addr.as_u32 = addr->as_u32;
908 devconf->is_blacklisted = 1;
911 else /* explicitly whitelisted, ignore the device blacklist */
917 if (d->vendor_id == 0x1af4 &&
918 (d->device_id == VIRTIO_PCI_LEGACY_DEVICEID_NET ||
919 d->device_id == VIRTIO_PCI_MODERN_DEVICEID_NET))
922 else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
925 * For vmxnet3 PCI, unless it is explicitly specified in the whitelist,
926 * the default is to put it in the blacklist.
930 pool_get (conf->dev_confs, devconf);
931 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
932 devconf - conf->dev_confs);
933 devconf->pci_addr.as_u32 = addr->as_u32;
934 devconf->is_blacklisted = 1;
937 /* all Intel network devices */
938 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
940 /* all Intel QAT devices VFs */
941 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
942 (d->device_id == 0x0443 || d->device_id == 0x18a1 || d->device_id == 0x19e3 ||
943 d->device_id == 0x37c9 || d->device_id == 0x6f55))
946 else if (d->vendor_id == 0x1137 &&
947 (d->device_id == 0x0043 || d->device_id == 0x0071))
950 else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
952 /* Amazon Elastic Network Adapter */
953 else if (d->vendor_id == 0x1d0f && d->device_id >= 0xec20 && d->device_id <= 0xec21)
955 /* Cavium Network Adapter */
956 else if (d->vendor_id == 0x177d && d->device_id == 0x9712)
958 /* Cavium FastlinQ QL41000 Series */
959 else if (d->vendor_id == 0x1077 && d->device_id >= 0x8070 && d->device_id <= 0x8090)
962 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1003 && d->device_id <= 0x1004)
967 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1013 && d->device_id <= 0x101a)
971 /* Broadcom NetXtreme S, and E series only */
972 else if (d->vendor_id == 0x14e4 &&
973 ((d->device_id >= 0x16c0 &&
974 d->device_id != 0x16c6 && d->device_id != 0x16c7 &&
975 d->device_id != 0x16dd && d->device_id != 0x16f7 &&
976 d->device_id != 0x16fd && d->device_id != 0x16fe &&
977 d->device_id != 0x170d && d->device_id != 0x170c &&
978 d->device_id != 0x170e && d->device_id != 0x1712 &&
979 d->device_id != 0x1713) ||
980 (d->device_id == 0x1604 || d->device_id == 0x1605 ||
981 d->device_id == 0x1614 || d->device_id == 0x1606 ||
982 d->device_id == 0x1609 || d->device_id == 0x1614)))
986 dpdk_log_warn ("Unsupported PCI device 0x%04x:0x%04x found "
987 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
992 error = vlib_pci_bind_to_uio (vm, addr, (char *) conf->uio_driver_name);
998 pool_get (conf->dev_confs, devconf);
999 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
1000 devconf - conf->dev_confs);
1001 devconf->pci_addr.as_u32 = addr->as_u32;
1003 devconf->is_blacklisted = 1;
1004 clib_error_report (error);
1008 vec_free (pci_addr);
1009 vlib_pci_free_device_info (d);
1013 dpdk_bind_vmbus_devices_to_uio (dpdk_config_main_t * conf)
1015 clib_error_t *error;
1016 vlib_vmbus_addr_t *addrs, *addr = 0;
1018 addrs = vlib_vmbus_get_all_dev_addrs ();
1021 vec_foreach (addr, addrs)
1023 error = vlib_vmbus_bind_to_uio (addr);
1027 clib_error_report (error);
1033 static clib_error_t *
1034 dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr,
1035 unformat_input_t * input, u8 is_default)
1037 clib_error_t *error = 0;
1039 dpdk_device_config_t *devconf;
1040 unformat_input_t sub_input;
1044 devconf = &conf->default_devconf;
1048 p = hash_get (conf->device_config_index_by_pci_addr, pci_addr.as_u32);
1052 pool_get (conf->dev_confs, devconf);
1053 hash_set (conf->device_config_index_by_pci_addr, pci_addr.as_u32,
1054 devconf - conf->dev_confs);
1057 return clib_error_return (0,
1058 "duplicate configuration for PCI address %U",
1059 format_vlib_pci_addr, &pci_addr);
1062 devconf->pci_addr.as_u32 = pci_addr.as_u32;
1063 devconf->hqos_enabled = 0;
1064 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
1066 dpdk_device_config_hqos_default (&devconf->hqos);
1072 unformat_skip_white_space (input);
1073 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1075 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
1077 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
1079 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
1081 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
1083 else if (unformat (input, "name %s", &devconf->name))
1085 else if (unformat (input, "workers %U", unformat_bitmap_list,
1090 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
1092 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
1096 else if (unformat (input, "vlan-strip-offload off"))
1097 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
1098 else if (unformat (input, "vlan-strip-offload on"))
1099 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
1102 (input, "hqos %U", unformat_vlib_cli_sub_input, &sub_input))
1104 devconf->hqos_enabled = 1;
1105 error = unformat_hqos (&sub_input, &devconf->hqos);
1109 else if (unformat (input, "hqos"))
1111 devconf->hqos_enabled = 1;
1113 else if (unformat (input, "tso on"))
1115 devconf->tso = DPDK_DEVICE_TSO_ON;
1117 else if (unformat (input, "tso off"))
1119 devconf->tso = DPDK_DEVICE_TSO_OFF;
1121 else if (unformat (input, "devargs %s", &devconf->devargs))
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 /* copy tso config from default device */
1436 /* add DPDK EAL whitelist/blacklist entry */
1437 if (num_whitelisted > 0 && devconf->is_blacklisted == 0)
1439 tmp = format (0, "-w%c", 0);
1440 vec_add1 (conf->eal_init_args, tmp);
1441 if (devconf->devargs)
1443 tmp = format (0, "%U,%s", format_vlib_pci_addr, &devconf->pci_addr, devconf->devargs, 0);
1447 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1449 vec_add1 (conf->eal_init_args, tmp);
1451 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0)
1453 tmp = format (0, "-b%c", 0);
1454 vec_add1 (conf->eal_init_args, tmp);
1455 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1456 vec_add1 (conf->eal_init_args, tmp);
1463 /* set master-lcore */
1464 tmp = format (0, "--master-lcore%c", 0);
1465 vec_add1 (conf->eal_init_args, tmp);
1466 tmp = format (0, "%u%c", tm->main_lcore, 0);
1467 vec_add1 (conf->eal_init_args, tmp);
1471 clib_warning ("socket-mem argument is deprecated");
1473 /* NULL terminate the "argv" vector, in case of stupidity */
1474 vec_add1 (conf->eal_init_args, 0);
1475 _vec_len (conf->eal_init_args) -= 1;
1477 /* Set up DPDK eal and packet mbuf pool early. */
1479 int log_fds[2] = { 0 };
1480 if (pipe (log_fds) == 0)
1482 if (fcntl (log_fds[1], F_SETFL, O_NONBLOCK) == 0)
1484 FILE *f = fdopen (log_fds[1], "a");
1485 if (f && rte_openlog_stream (f) == 0)
1487 clib_file_t t = { 0 };
1488 t.read_function = dpdk_log_read_ready;
1489 t.file_descriptor = log_fds[0];
1490 t.description = format (0, "DPDK logging pipe");
1491 clib_file_add (&file_main, &t);
1501 vm = vlib_get_main ();
1503 /* make copy of args as rte_eal_init tends to mess up with arg array */
1504 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1505 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1506 conf->eal_init_args[i]);
1508 vec_terminate_c_string (conf->eal_init_args_str);
1510 dpdk_log_warn ("EAL init args: %s", conf->eal_init_args_str);
1511 ret = rte_eal_init (vec_len (conf->eal_init_args),
1512 (char **) conf->eal_init_args);
1514 /* lazy umount hugepages */
1515 umount2 ((char *) huge_dir_path, MNT_DETACH);
1516 rmdir ((char *) huge_dir_path);
1517 vec_free (huge_dir_path);
1520 return clib_error_return (0, "rte_eal_init returned %d", ret);
1522 /* main thread 1st */
1523 if ((error = dpdk_buffer_pools_create (vm)))
1530 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1533 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1535 vnet_main_t *vnm = vnet_get_main ();
1536 struct rte_eth_link prev_link = xd->link;
1538 u8 hw_flags_chg = 0;
1540 /* only update link state for PMD interfaces */
1541 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
1544 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1545 clib_memset (&xd->link, 0, sizeof (xd->link));
1546 rte_eth_link_get_nowait (xd->port_id, &xd->link);
1548 if (LINK_STATE_ELOGS)
1550 vlib_main_t *vm = vlib_get_main ();
1551 ELOG_TYPE_DECLARE (e) =
1554 "update-link-state: sw_if_index %d, admin_up %d,"
1555 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1564 ed = ELOG_DATA (&vm->elog_main, e);
1565 ed->sw_if_index = xd->sw_if_index;
1566 ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1567 ed->old_link_state = (u8)
1568 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
1569 ed->new_link_state = (u8) xd->link.link_status;
1572 if ((xd->link.link_duplex != prev_link.link_duplex))
1575 switch (xd->link.link_duplex)
1577 case ETH_LINK_HALF_DUPLEX:
1578 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1580 case ETH_LINK_FULL_DUPLEX:
1581 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1587 if (xd->link.link_speed != prev_link.link_speed)
1588 vnet_hw_interface_set_link_speed (vnm, xd->hw_if_index,
1589 xd->link.link_speed * 1000);
1591 if (xd->link.link_status != prev_link.link_status)
1595 if (xd->link.link_status)
1596 hw_flags |= VNET_HW_INTERFACE_FLAG_LINK_UP;
1601 if (LINK_STATE_ELOGS)
1603 vlib_main_t *vm = vlib_get_main ();
1605 ELOG_TYPE_DECLARE (e) =
1608 "update-link-state: sw_if_index %d, new flags %d",.format_args
1616 ed = ELOG_DATA (&vm->elog_main, e);
1617 ed->sw_if_index = xd->sw_if_index;
1618 ed->flags = hw_flags;
1620 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, hw_flags);
1625 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1627 clib_error_t *error;
1628 dpdk_main_t *dm = &dpdk_main;
1630 vlib_thread_main_t *tm = vlib_get_thread_main ();
1632 error = dpdk_lib_init (dm);
1635 clib_error_report (error);
1637 tm->worker_thread_release = 1;
1639 f64 now = vlib_time_now (vm);
1640 vec_foreach (xd, dm->devices)
1642 dpdk_update_link_state (xd, now);
1648 * check each time through the loop in case intervals are changed
1650 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1651 dm->link_state_poll_interval : dm->stat_poll_interval;
1653 vlib_process_wait_for_event_or_clock (vm, min_wait);
1655 if (dm->admin_up_down_in_progress)
1656 /* skip the poll if an admin up down is in progress (on any interface) */
1659 vec_foreach (xd, dm->devices)
1661 f64 now = vlib_time_now (vm);
1662 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1663 dpdk_update_counters (xd, now);
1664 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1665 dpdk_update_link_state (xd, now);
1674 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1675 .function = dpdk_process,
1676 .type = VLIB_NODE_TYPE_PROCESS,
1677 .name = "dpdk-process",
1678 .process_log2_n_stack_bytes = 17,
1682 static clib_error_t *
1683 dpdk_init (vlib_main_t * vm)
1685 dpdk_main_t *dm = &dpdk_main;
1686 clib_error_t *error = 0;
1688 /* verify that structs are cacheline aligned */
1689 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1690 "Cache line marker must be 1st element in dpdk_device_t");
1691 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1692 CLIB_CACHE_LINE_BYTES,
1693 "Data in cache line 0 is bigger than cache line size");
1694 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1695 "Cache line marker must be 1st element in frame_queue_trace_t");
1696 STATIC_ASSERT (RTE_CACHE_LINE_SIZE == 1 << CLIB_LOG2_CACHE_LINE_BYTES,
1697 "DPDK RTE CACHE LINE SIZE does not match with 1<<CLIB_LOG2_CACHE_LINE_BYTES");
1699 dpdk_cli_reference ();
1702 dm->vnet_main = vnet_get_main ();
1703 dm->conf = &dpdk_config_main;
1705 dm->conf->nchannels = 4;
1706 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1707 vec_add1 (dm->conf->eal_init_args, (u8 *) "--in-memory");
1709 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1710 dm->buffer_flags_template = (VLIB_BUFFER_TOTAL_LENGTH_VALID |
1711 VLIB_BUFFER_EXT_HDR_VALID |
1712 VNET_BUFFER_F_L4_CHECKSUM_COMPUTED |
1713 VNET_BUFFER_F_L4_CHECKSUM_CORRECT);
1715 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1716 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1718 dm->log_default = vlib_log_register_class ("dpdk", 0);
1723 VLIB_INIT_FUNCTION (dpdk_init);
1726 * fd.io coding-style-patch-verification: ON
1729 * eval: (c-set-style "gnu")