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 u8 af_packet_instance_num = 0;
218 last_pci_addr.as_u32 = ~0;
220 nports = rte_eth_dev_count_avail ();
224 dpdk_log_notice ("DPDK drivers found no Ethernet devices...");
228 dpdk_log_notice ("DPDK drivers found %d ports...", nports);
230 if (dm->conf->enable_tcp_udp_checksum)
231 dm->buffer_flags_template &= ~(VNET_BUFFER_F_L4_CHECKSUM_CORRECT
232 | VNET_BUFFER_F_L4_CHECKSUM_COMPUTED);
234 /* vlib_buffer_t template */
235 vec_validate_aligned (dm->per_thread_data, tm->n_vlib_mains - 1,
236 CLIB_CACHE_LINE_BYTES);
237 for (i = 0; i < tm->n_vlib_mains; i++)
239 dpdk_per_thread_data_t *ptd = vec_elt_at_index (dm->per_thread_data, i);
240 clib_memset (&ptd->buffer_template, 0, sizeof (vlib_buffer_t));
241 ptd->buffer_template.flags = dm->buffer_flags_template;
242 vnet_buffer (&ptd->buffer_template)->sw_if_index[VLIB_TX] = (u32) ~ 0;
246 RTE_ETH_FOREACH_DEV(i)
250 struct rte_eth_dev_info dev_info;
251 struct rte_pci_device *pci_dev;
252 struct rte_eth_link l;
253 dpdk_portid_t next_port_id;
254 dpdk_device_config_t *devconf = 0;
255 vlib_pci_addr_t pci_addr;
258 if (!rte_eth_dev_is_valid_port(i))
261 rte_eth_link_get_nowait (i, &l);
262 rte_eth_dev_info_get (i, &dev_info);
264 if (dev_info.device == 0)
266 dpdk_log_notice ("DPDK bug: missing device info. Skipping %s device",
267 dev_info.driver_name);
271 pci_dev = dpdk_get_pci_device (&dev_info);
275 pci_addr.domain = pci_dev->addr.domain;
276 pci_addr.bus = pci_dev->addr.bus;
277 pci_addr.slot = pci_dev->addr.devid;
278 pci_addr.function = pci_dev->addr.function;
279 p = hash_get (dm->conf->device_config_index_by_pci_addr,
284 /* Create vnet interface */
285 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
286 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
287 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
288 xd->cpu_socket = (i8) rte_eth_dev_socket_id (i);
292 devconf = pool_elt_at_index (dm->conf->dev_confs, p[0]);
293 xd->name = devconf->name;
296 devconf = &dm->conf->default_devconf;
298 /* Handle representor devices that share the same PCI ID */
299 if (dev_info.switch_info.domain_id != RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID)
301 if (dev_info.switch_info.port_id != (uint16_t)-1)
302 xd->interface_name_suffix = format (0, "%d", dev_info.switch_info.port_id);
304 /* Handle interface naming for devices with multiple ports sharing same PCI ID */
306 ((next_port_id = rte_eth_find_next (i + 1)) != RTE_MAX_ETHPORTS))
308 struct rte_eth_dev_info di = { 0 };
309 struct rte_pci_device *next_pci_dev;
310 rte_eth_dev_info_get (next_port_id, &di);
311 next_pci_dev = di.device ? RTE_DEV_TO_PCI (di.device) : 0;
313 pci_addr.as_u32 != last_pci_addr.as_u32 &&
314 memcmp (&pci_dev->addr, &next_pci_dev->addr,
315 sizeof (struct rte_pci_addr)) == 0)
317 xd->interface_name_suffix = format (0, "0");
318 last_pci_addr.as_u32 = pci_addr.as_u32;
319 last_pci_addr_port = i;
321 else if (pci_addr.as_u32 == last_pci_addr.as_u32)
323 xd->interface_name_suffix =
324 format (0, "%u", i - last_pci_addr_port);
328 last_pci_addr.as_u32 = ~0;
332 last_pci_addr.as_u32 = ~0;
334 clib_memcpy (&xd->tx_conf, &dev_info.default_txconf,
335 sizeof (struct rte_eth_txconf));
337 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_IPV4_CKSUM)
339 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_IPV4_CKSUM;
340 xd->flags |= DPDK_DEVICE_FLAG_RX_IP4_CKSUM;
343 if (dm->conf->no_multi_seg)
345 xd->port_conf.txmode.offloads &= ~DEV_TX_OFFLOAD_MULTI_SEGS;
346 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME;
347 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
351 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
352 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
353 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_SCATTER;
354 xd->flags |= DPDK_DEVICE_FLAG_MAYBE_MULTISEG;
357 xd->tx_q_used = clib_min (dev_info.max_tx_queues, tm->n_vlib_mains);
359 if (devconf->num_tx_queues > 0
360 && devconf->num_tx_queues < xd->tx_q_used)
361 xd->tx_q_used = clib_min (xd->tx_q_used, devconf->num_tx_queues);
363 if (devconf->num_rx_queues > 1
364 && dev_info.max_rx_queues >= devconf->num_rx_queues)
366 xd->rx_q_used = devconf->num_rx_queues;
367 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
368 if (devconf->rss_fn == 0)
369 xd->port_conf.rx_adv_conf.rss_conf.rss_hf =
370 ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
373 u64 unsupported_bits;
374 xd->port_conf.rx_adv_conf.rss_conf.rss_hf = devconf->rss_fn;
375 unsupported_bits = xd->port_conf.rx_adv_conf.rss_conf.rss_hf;
376 unsupported_bits &= ~dev_info.flow_type_rss_offloads;
377 if (unsupported_bits)
378 dpdk_log_warn ("Unsupported RSS hash functions: %U",
379 format_dpdk_rss_hf_name, unsupported_bits);
381 xd->port_conf.rx_adv_conf.rss_conf.rss_hf &=
382 dev_info.flow_type_rss_offloads;
387 xd->flags |= DPDK_DEVICE_FLAG_PMD;
389 /* workaround for drivers not setting driver_name */
390 if ((!dev_info.driver_name) && (pci_dev))
391 dev_info.driver_name = pci_dev->driver->driver.name;
393 ASSERT (dev_info.driver_name);
399 #define _(s,f) else if (dev_info.driver_name && \
400 !strcmp(dev_info.driver_name, s)) \
401 xd->pmd = VNET_DPDK_PMD_##f;
407 xd->pmd = VNET_DPDK_PMD_UNKNOWN;
409 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
410 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
411 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
415 /* Drivers with valid speed_capa set */
416 case VNET_DPDK_PMD_E1000EM:
417 case VNET_DPDK_PMD_IGB:
418 case VNET_DPDK_PMD_IXGBE:
419 case VNET_DPDK_PMD_I40E:
420 case VNET_DPDK_PMD_ICE:
421 xd->port_type = port_type_from_speed_capa (&dev_info);
422 xd->supported_flow_actions = VNET_FLOW_ACTION_MARK |
423 VNET_FLOW_ACTION_REDIRECT_TO_NODE |
424 VNET_FLOW_ACTION_REDIRECT_TO_QUEUE |
425 VNET_FLOW_ACTION_BUFFER_ADVANCE |
426 VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP;
428 if (dm->conf->no_tx_checksum_offload == 0)
430 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
431 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
433 DPDK_DEVICE_FLAG_TX_OFFLOAD |
434 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
439 case VNET_DPDK_PMD_CXGBE:
440 case VNET_DPDK_PMD_MLX4:
441 case VNET_DPDK_PMD_MLX5:
442 case VNET_DPDK_PMD_QEDE:
443 case VNET_DPDK_PMD_BNXT:
444 xd->port_type = port_type_from_speed_capa (&dev_info);
448 case VNET_DPDK_PMD_IGBVF:
449 case VNET_DPDK_PMD_IXGBEVF:
450 case VNET_DPDK_PMD_I40EVF:
451 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
452 if (dm->conf->no_tx_checksum_offload == 0)
454 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
455 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
457 DPDK_DEVICE_FLAG_TX_OFFLOAD |
458 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
462 case VNET_DPDK_PMD_THUNDERX:
463 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
465 if (dm->conf->no_tx_checksum_offload == 0)
467 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
468 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
469 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD;
473 case VNET_DPDK_PMD_ENA:
474 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
475 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
478 case VNET_DPDK_PMD_DPAA2:
479 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
483 case VNET_DPDK_PMD_ENIC:
484 xd->port_type = port_type_from_link_speed (l.link_speed);
487 /* Intel Red Rock Canyon */
488 case VNET_DPDK_PMD_FM10K:
489 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
493 case VNET_DPDK_PMD_VIRTIO:
494 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
495 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
496 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
500 case VNET_DPDK_PMD_VMXNET3:
501 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
502 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
505 case VNET_DPDK_PMD_AF_PACKET:
506 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
507 xd->af_packet_instance_num = af_packet_instance_num++;
510 case VNET_DPDK_PMD_VIRTIO_USER:
511 xd->port_type = VNET_DPDK_PORT_TYPE_VIRTIO_USER;
514 case VNET_DPDK_PMD_VHOST_ETHER:
515 xd->port_type = VNET_DPDK_PORT_TYPE_VHOST_ETHER;
518 case VNET_DPDK_PMD_LIOVF_ETHER:
519 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
522 case VNET_DPDK_PMD_FAILSAFE:
523 xd->port_type = VNET_DPDK_PORT_TYPE_FAILSAFE;
524 xd->port_conf.intr_conf.lsc = 1;
527 case VNET_DPDK_PMD_NETVSC:
528 xd->port_type = port_type_from_link_speed (l.link_speed);
532 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
535 if (devconf->num_rx_desc)
536 xd->nb_rx_desc = devconf->num_rx_desc;
539 /* If num_rx_desc is not specified by VPP user, the current CPU is working
540 with 2M page and has no L3 cache, default num_rx_desc is changed to 512
541 from original 1024 to help reduce TLB misses.
543 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
544 && check_l3cache() == 0)
545 xd->nb_rx_desc = 512;
548 if (devconf->num_tx_desc)
549 xd->nb_tx_desc = devconf->num_tx_desc;
552 /* If num_tx_desc is not specified by VPP user, the current CPU is working
553 with 2M page and has no L3 cache, default num_tx_desc is changed to 512
554 from original 1024 to help reduce TLB misses.
556 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
557 && check_l3cache() == 0)
558 xd->nb_tx_desc = 512;
562 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
564 f64 now = vlib_time_now (vm);
566 rnd = (u32) (now * 1e6);
567 rnd = random_u32 (&rnd);
568 clib_memcpy (addr + 2, &rnd, sizeof (rnd));
573 rte_eth_macaddr_get (i, (void *) addr);
575 if (xd->tx_q_used < tm->n_vlib_mains)
576 dpdk_device_lock_init (xd);
579 xd->device_index = xd - dm->devices;
580 xd->per_interface_next_index = ~0;
582 /* assign interface to input thread */
586 error = ethernet_register_interface
587 (dm->vnet_main, dpdk_device_class.index, xd->device_index,
588 /* ethernet address */ addr,
589 &xd->hw_if_index, dpdk_flag_change);
594 * Ensure default mtu is not > the mtu read from the hardware.
595 * Otherwise rte_eth_dev_configure() will fail and the port will
597 * Calculate max_frame_size and mtu supported by NIC
599 if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
602 * This device does not support the platforms's max frame
603 * size. Use it's advertised mru instead.
605 max_rx_frame = dev_info.max_rx_pktlen;
606 mtu = dev_info.max_rx_pktlen - sizeof (ethernet_header_t);
610 /* VPP treats MTU and max_rx_pktlen both equal to
611 * ETHERNET_MAX_PACKET_BYTES, if dev_info.max_rx_pktlen >=
612 * ETHERNET_MAX_PACKET_BYTES + sizeof(ethernet_header_t)
614 if (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
615 sizeof (ethernet_header_t)))
617 mtu = ETHERNET_MAX_PACKET_BYTES;
618 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
621 * Some platforms do not account for Ethernet FCS (4 bytes) in
622 * MTU calculations. To interop with them increase mru but only
623 * if the device's settings can support it.
625 if (dpdk_port_crc_strip_enabled (xd) &&
626 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
627 sizeof (ethernet_header_t) +
635 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
636 mtu = ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
638 if (dpdk_port_crc_strip_enabled (xd) &&
639 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)))
646 if (xd->pmd == VNET_DPDK_PMD_FAILSAFE)
648 /* failsafe device numerables are reported with active device only,
649 * need to query the mtu for current device setup to overwrite
653 if (!rte_eth_dev_get_mtu (i, &dev_mtu))
656 max_rx_frame = mtu + sizeof (ethernet_header_t);
658 if (dpdk_port_crc_strip_enabled (xd))
665 /*Set port rxmode config */
666 xd->port_conf.rxmode.max_rx_pkt_len = max_rx_frame;
668 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->hw_if_index);
669 xd->sw_if_index = sw->sw_if_index;
670 vnet_hw_interface_set_input_node (dm->vnet_main, xd->hw_if_index,
671 dpdk_input_node.index);
673 if (devconf->workers)
677 clib_bitmap_foreach (i, devconf->workers, ({
678 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q++,
679 vdm->first_worker_thread_index + i);
683 for (q = 0; q < xd->rx_q_used; q++)
685 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q, /* any */
689 /*Get vnet hardware interface */
690 hi = vnet_get_hw_interface (dm->vnet_main, xd->hw_if_index);
692 /*Override default max_packet_bytes and max_supported_bytes set in
693 * ethernet_register_interface() above*/
696 hi->max_packet_bytes = mtu;
697 hi->max_supported_packet_bytes = max_rx_frame;
698 hi->numa_node = xd->cpu_socket;
701 if (dm->conf->no_tx_checksum_offload == 0)
702 if (xd->flags & DPDK_DEVICE_FLAG_TX_OFFLOAD && hi != NULL)
703 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD;
705 if (devconf->tso == DPDK_DEVICE_TSO_ON && hi != NULL)
707 /*tcp_udp checksum must be enabled*/
708 if ((dm->conf->enable_tcp_udp_checksum) &&
709 (hi->flags & VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD))
711 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO;
712 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_TSO |
713 DEV_TX_OFFLOAD_UDP_TSO;
716 clib_warning ("%s: TCP/UDP checksum offload must be enabled",
720 dpdk_device_setup (xd);
722 if (vec_len (xd->errors))
723 dpdk_log_err ("setup failed for device %U. Errors:\n %U",
724 format_dpdk_device_name, i,
725 format_dpdk_device_errors, xd);
728 * A note on Cisco VIC (PMD_ENIC) and VLAN:
730 * With Cisco VIC vNIC, every ingress packet is tagged. On a
731 * trunk vNIC (C series "standalone" server), packets on no VLAN
732 * are tagged with vlan 0. On an access vNIC (standalone or B
733 * series "blade" server), packets on the default/native VLAN
734 * are tagged with that vNIC's VLAN. VPP expects these packets
735 * to be untagged, and previously enabled VLAN strip on VIC by
736 * default. But it also broke vlan sub-interfaces.
738 * The VIC adapter has "untag default vlan" ingress VLAN rewrite
739 * mode, which removes tags from these packets. VPP now includes
740 * a local patch for the enic driver to use this untag mode, so
741 * enabling vlan stripping is no longer needed. In future, the
742 * driver + dpdk will have an API to set the mode after
743 * rte_eal_init. Then, this note and local patch will be
748 * VLAN stripping: default to VLAN strip disabled, unless specified
749 * otherwise in the startup config.
752 vlan_off = rte_eth_dev_get_vlan_offload (xd->port_id);
753 if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
755 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
756 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
757 dpdk_log_info ("VLAN strip enabled for interface\n");
759 dpdk_log_warn ("VLAN strip cannot be supported by interface\n");
760 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_VLAN_STRIP;
764 if (vlan_off & ETH_VLAN_STRIP_OFFLOAD)
766 vlan_off &= ~ETH_VLAN_STRIP_OFFLOAD;
767 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
768 dpdk_log_warn ("set VLAN offload failed\n");
770 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP;
774 hi->max_packet_bytes = xd->port_conf.rxmode.max_rx_pkt_len
775 - sizeof (ethernet_header_t);
777 dpdk_log_warn ("hi NULL");
779 if (dm->conf->no_multi_seg)
780 mtu = mtu > ETHER_MAX_LEN ? ETHER_MAX_LEN : mtu;
782 rte_eth_dev_set_mtu (xd->port_id, mtu);
790 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
792 vlib_main_t *vm = vlib_get_main ();
795 int num_whitelisted = vec_len (conf->dev_confs);
796 vlib_pci_device_info_t *d = 0;
797 vlib_pci_addr_t *addr = 0, *addrs;
800 addrs = vlib_pci_get_all_dev_addrs ();
802 vec_foreach (addr, addrs)
804 dpdk_device_config_t * devconf = 0;
805 vec_reset_length (pci_addr);
806 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, addr, 0);
809 vlib_pci_free_device_info (d);
812 d = vlib_pci_get_device_info (vm, addr, &error);
815 clib_error_report (error);
819 if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
824 uword * p = hash_get (conf->device_config_index_by_pci_addr, addr->as_u32);
832 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
835 /* Enforce Device blacklist by vendor and device */
836 for (i = 0; i < vec_len (conf->blacklist_by_pci_vendor_and_device); i++)
839 vendor = (u16)(conf->blacklist_by_pci_vendor_and_device[i] >> 16);
840 device = (u16)(conf->blacklist_by_pci_vendor_and_device[i] & 0xFFFF);
841 if (d->vendor_id == vendor && d->device_id == device)
844 * Expected case: device isn't whitelisted,
849 /* Device is blacklisted */
850 pool_get (conf->dev_confs, devconf);
851 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
852 devconf - conf->dev_confs);
853 devconf->pci_addr.as_u32 = addr->as_u32;
854 devconf->is_blacklisted = 1;
857 else /* explicitly whitelisted, ignore the device blacklist */
863 if (d->vendor_id == 0x1af4 &&
864 (d->device_id == VIRTIO_PCI_LEGACY_DEVICEID_NET ||
865 d->device_id == VIRTIO_PCI_MODERN_DEVICEID_NET))
868 else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
871 * For vmxnet3 PCI, unless it is explicitly specified in the whitelist,
872 * the default is to put it in the blacklist.
876 pool_get (conf->dev_confs, devconf);
877 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
878 devconf - conf->dev_confs);
879 devconf->pci_addr.as_u32 = addr->as_u32;
880 devconf->is_blacklisted = 1;
883 /* all Intel network devices */
884 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
886 /* all Intel QAT devices VFs */
887 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
888 (d->device_id == 0x0443 || d->device_id == 0x18a1 || d->device_id == 0x19e3 ||
889 d->device_id == 0x37c9 || d->device_id == 0x6f55))
892 else if (d->vendor_id == 0x1137 &&
893 (d->device_id == 0x0043 || d->device_id == 0x0071))
896 else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
898 /* Amazon Elastic Network Adapter */
899 else if (d->vendor_id == 0x1d0f && d->device_id >= 0xec20 && d->device_id <= 0xec21)
901 /* Cavium Network Adapter */
902 else if (d->vendor_id == 0x177d && d->device_id == 0x9712)
904 /* Cavium FastlinQ QL41000 Series */
905 else if (d->vendor_id == 0x1077 && d->device_id >= 0x8070 && d->device_id <= 0x8090)
908 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1003 && d->device_id <= 0x1004)
913 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1013 && d->device_id <= 0x101a)
917 /* Broadcom NetXtreme S, and E series only */
918 else if (d->vendor_id == 0x14e4 &&
919 ((d->device_id >= 0x16c0 &&
920 d->device_id != 0x16c6 && d->device_id != 0x16c7 &&
921 d->device_id != 0x16dd && d->device_id != 0x16f7 &&
922 d->device_id != 0x16fd && d->device_id != 0x16fe &&
923 d->device_id != 0x170d && d->device_id != 0x170c &&
924 d->device_id != 0x170e && d->device_id != 0x1712 &&
925 d->device_id != 0x1713) ||
926 (d->device_id == 0x1604 || d->device_id == 0x1605 ||
927 d->device_id == 0x1614 || d->device_id == 0x1606 ||
928 d->device_id == 0x1609 || d->device_id == 0x1614)))
932 dpdk_log_warn ("Unsupported PCI device 0x%04x:0x%04x found "
933 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
938 error = vlib_pci_bind_to_uio (vm, addr, (char *) conf->uio_driver_name);
944 pool_get (conf->dev_confs, devconf);
945 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
946 devconf - conf->dev_confs);
947 devconf->pci_addr.as_u32 = addr->as_u32;
949 devconf->is_blacklisted = 1;
950 clib_error_report (error);
955 vlib_pci_free_device_info (d);
959 dpdk_bind_vmbus_devices_to_uio (dpdk_config_main_t * conf)
962 vlib_vmbus_addr_t *addrs, *addr = 0;
964 addrs = vlib_vmbus_get_all_dev_addrs ();
967 vec_foreach (addr, addrs)
969 error = vlib_vmbus_bind_to_uio (addr);
973 clib_error_report (error);
979 static clib_error_t *
980 dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr,
981 unformat_input_t * input, u8 is_default)
983 clib_error_t *error = 0;
985 dpdk_device_config_t *devconf;
986 unformat_input_t sub_input;
990 devconf = &conf->default_devconf;
994 p = hash_get (conf->device_config_index_by_pci_addr, pci_addr.as_u32);
998 pool_get (conf->dev_confs, devconf);
999 hash_set (conf->device_config_index_by_pci_addr, pci_addr.as_u32,
1000 devconf - conf->dev_confs);
1003 return clib_error_return (0,
1004 "duplicate configuration for PCI address %U",
1005 format_vlib_pci_addr, &pci_addr);
1008 devconf->pci_addr.as_u32 = pci_addr.as_u32;
1009 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
1014 unformat_skip_white_space (input);
1015 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1017 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
1019 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
1021 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
1023 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
1025 else if (unformat (input, "name %s", &devconf->name))
1027 else if (unformat (input, "workers %U", unformat_bitmap_list,
1032 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
1034 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
1038 else if (unformat (input, "vlan-strip-offload off"))
1039 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
1040 else if (unformat (input, "vlan-strip-offload on"))
1041 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
1042 else if (unformat (input, "tso on"))
1044 devconf->tso = DPDK_DEVICE_TSO_ON;
1046 else if (unformat (input, "tso off"))
1048 devconf->tso = DPDK_DEVICE_TSO_OFF;
1050 else if (unformat (input, "devargs %s", &devconf->devargs))
1054 error = clib_error_return (0, "unknown input `%U'",
1055 format_unformat_error, input);
1063 if (devconf->workers && devconf->num_rx_queues == 0)
1064 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
1065 else if (devconf->workers &&
1066 clib_bitmap_count_set_bits (devconf->workers) !=
1067 devconf->num_rx_queues)
1069 clib_error_return (0,
1070 "%U: number of worker threads must be "
1071 "equal to number of rx queues", format_vlib_pci_addr,
1077 static clib_error_t *
1078 dpdk_log_read_ready (clib_file_t * uf)
1080 unformat_input_t input;
1087 uword len = vec_len (s);
1088 vec_resize (s, len + n_try);
1090 n = read (uf->file_descriptor, s + len, n_try);
1091 if (n < 0 && errno != EAGAIN)
1092 return clib_error_return_unix (0, "read");
1093 _vec_len (s) = len + (n < 0 ? 0 : n);
1096 unformat_init_vector (&input, s);
1098 while (unformat_user (&input, unformat_line, &line))
1100 dpdk_log_notice ("%v", line);
1104 unformat_free (&input);
1108 static clib_error_t *
1109 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
1111 clib_error_t *error = 0;
1112 dpdk_config_main_t *conf = &dpdk_config_main;
1113 vlib_thread_main_t *tm = vlib_get_thread_main ();
1114 dpdk_device_config_t *devconf;
1115 vlib_pci_addr_t pci_addr;
1116 unformat_input_t sub_input;
1117 uword default_hugepage_sz, x;
1120 int num_whitelisted = 0;
1125 u8 *huge_dir_path = 0;
1129 format (0, "%s/hugepages%c", vlib_unix_get_runtime_dir (), 0);
1131 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
1133 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1135 /* Prime the pump */
1136 if (unformat (input, "no-hugetlb"))
1138 vec_add1 (conf->eal_init_args, (u8 *) "--no-huge");
1141 else if (unformat (input, "enable-tcp-udp-checksum"))
1142 conf->enable_tcp_udp_checksum = 1;
1144 else if (unformat (input, "no-tx-checksum-offload"))
1145 conf->no_tx_checksum_offload = 1;
1147 else if (unformat (input, "decimal-interface-names"))
1148 conf->interface_name_format_decimal = 1;
1150 else if (unformat (input, "no-multi-seg"))
1151 conf->no_multi_seg = 1;
1153 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
1157 dpdk_device_config (conf, (vlib_pci_addr_t) (u32) ~ 1, &sub_input,
1165 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
1166 unformat_vlib_cli_sub_input, &sub_input))
1168 error = dpdk_device_config (conf, pci_addr, &sub_input, 0);
1175 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
1177 error = dpdk_device_config (conf, pci_addr, 0, 0);
1184 else if (unformat (input, "num-mem-channels %d", &conf->nchannels))
1185 conf->nchannels_set_manually = 0;
1186 else if (unformat (input, "num-crypto-mbufs %d",
1187 &conf->num_crypto_mbufs))
1189 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
1191 else if (unformat (input, "socket-mem %s", &socket_mem))
1193 else if (unformat (input, "no-pci"))
1196 tmp = format (0, "--no-pci%c", 0);
1197 vec_add1 (conf->eal_init_args, tmp);
1199 else if (unformat (input, "blacklist %x:%x", &vendor, &device))
1201 u32 blacklist_entry;
1202 if (vendor > 0xFFFF)
1203 return clib_error_return (0, "blacklist PCI vendor out of range");
1204 if (device > 0xFFFF)
1205 return clib_error_return (0, "blacklist PCI device out of range");
1206 blacklist_entry = (vendor << 16) | (device & 0xffff);
1207 vec_add1 (conf->blacklist_by_pci_vendor_and_device,
1210 else if (unformat (input, "no-vmbus"))
1213 tmp = format (0, "--no-vmbus%c", 0);
1214 vec_add1 (conf->eal_init_args, tmp);
1218 else if (unformat(input, #a)) \
1220 tmp = format (0, "--%s%c", #a, 0); \
1221 vec_add1 (conf->eal_init_args, tmp); \
1223 foreach_eal_double_hyphen_predicate_arg
1226 else if (unformat(input, #a " %s", &s)) \
1228 if (!strncmp(#a, "file-prefix", 11)) \
1230 tmp = format (0, "--%s%c", #a, 0); \
1231 vec_add1 (conf->eal_init_args, tmp); \
1233 if (!strncmp(#a, "vdev", 4)) \
1234 if (strstr((char*)s, "af_packet")) \
1235 clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
1236 vec_add1 (conf->eal_init_args, s); \
1238 foreach_eal_double_hyphen_arg
1241 else if (unformat(input, #a " %s", &s)) \
1243 tmp = format (0, "-%s%c", #b, 0); \
1244 vec_add1 (conf->eal_init_args, tmp); \
1246 vec_add1 (conf->eal_init_args, s); \
1248 foreach_eal_single_hyphen_arg
1251 else if (unformat(input, #a " %s", &s)) \
1253 tmp = format (0, "-%s%c", #b, 0); \
1254 vec_add1 (conf->eal_init_args, tmp); \
1256 vec_add1 (conf->eal_init_args, s); \
1257 conf->a##_set_manually = 1; \
1259 foreach_eal_single_hyphen_mandatory_arg
1261 else if (unformat (input, "default"))
1264 else if (unformat_skip_white_space (input))
1268 error = clib_error_return (0, "unknown input `%U'",
1269 format_unformat_error, input);
1274 if (!conf->uio_driver_name)
1275 conf->uio_driver_name = format (0, "auto%c", 0);
1277 default_hugepage_sz = clib_mem_get_default_hugepage_size ();
1280 clib_bitmap_foreach (x, tm->cpu_socket_bitmap, (
1284 /* preallocate at least 16MB of hugepages per socket,
1285 if more is needed it is up to consumer to preallocate more */
1286 n_pages = round_pow2 ((uword) 16 << 20, default_hugepage_sz);
1287 n_pages /= default_hugepage_sz;
1289 if ((e = clib_sysfs_prealloc_hugepages(x, 0, n_pages)))
1290 clib_error_report (e);
1296 tmp = format (0, "--file-prefix%c", 0);
1297 vec_add1 (conf->eal_init_args, tmp);
1298 tmp = format (0, "vpp%c", 0);
1299 vec_add1 (conf->eal_init_args, tmp);
1305 /* I'll bet that -c and -n must be the first and second args... */
1306 if (!conf->coremask_set_manually)
1308 vlib_thread_registration_t *tr;
1309 uword *coremask = 0;
1312 /* main thread core */
1313 coremask = clib_bitmap_set (coremask, tm->main_lcore, 1);
1315 for (i = 0; i < vec_len (tm->registrations); i++)
1317 tr = tm->registrations[i];
1318 coremask = clib_bitmap_or (coremask, tr->coremask);
1321 vec_insert (conf->eal_init_args, 2, 1);
1322 conf->eal_init_args[1] = (u8 *) "-c";
1323 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1324 conf->eal_init_args[2] = tmp;
1325 clib_bitmap_free (coremask);
1328 if (!conf->nchannels_set_manually)
1330 vec_insert (conf->eal_init_args, 2, 3);
1331 conf->eal_init_args[3] = (u8 *) "-n";
1332 tmp = format (0, "%d", conf->nchannels);
1333 vec_terminate_c_string (tmp);
1334 conf->eal_init_args[4] = tmp;
1337 if (no_pci == 0 && geteuid () == 0)
1338 dpdk_bind_devices_to_uio (conf);
1340 if (no_vmbus == 0 && geteuid () == 0)
1341 dpdk_bind_vmbus_devices_to_uio (conf);
1344 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1345 devconf->x = conf->default_devconf.x ;
1348 pool_foreach (devconf, conf->dev_confs, ({
1350 /* default per-device config items */
1351 foreach_dpdk_device_config_item
1353 /* copy vlan_strip config from default device */
1354 if (devconf->vlan_strip_offload == 0 &&
1355 conf->default_devconf.vlan_strip_offload > 0)
1356 devconf->vlan_strip_offload =
1357 conf->default_devconf.vlan_strip_offload;
1359 /* copy tso config from default device */
1362 /* copy tso config from default device */
1365 /* add DPDK EAL whitelist/blacklist entry */
1366 if (num_whitelisted > 0 && devconf->is_blacklisted == 0)
1368 tmp = format (0, "-w%c", 0);
1369 vec_add1 (conf->eal_init_args, tmp);
1370 if (devconf->devargs)
1372 tmp = format (0, "%U,%s", format_vlib_pci_addr, &devconf->pci_addr, devconf->devargs, 0);
1376 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1378 vec_add1 (conf->eal_init_args, tmp);
1380 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0)
1382 tmp = format (0, "-b%c", 0);
1383 vec_add1 (conf->eal_init_args, tmp);
1384 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1385 vec_add1 (conf->eal_init_args, tmp);
1392 /* set master-lcore */
1393 tmp = format (0, "--master-lcore%c", 0);
1394 vec_add1 (conf->eal_init_args, tmp);
1395 tmp = format (0, "%u%c", tm->main_lcore, 0);
1396 vec_add1 (conf->eal_init_args, tmp);
1400 clib_warning ("socket-mem argument is deprecated");
1402 /* NULL terminate the "argv" vector, in case of stupidity */
1403 vec_add1 (conf->eal_init_args, 0);
1404 _vec_len (conf->eal_init_args) -= 1;
1406 /* Set up DPDK eal and packet mbuf pool early. */
1408 int log_fds[2] = { 0 };
1409 if (pipe (log_fds) == 0)
1411 if (fcntl (log_fds[1], F_SETFL, O_NONBLOCK) == 0)
1413 FILE *f = fdopen (log_fds[1], "a");
1414 if (f && rte_openlog_stream (f) == 0)
1416 clib_file_t t = { 0 };
1417 t.read_function = dpdk_log_read_ready;
1418 t.file_descriptor = log_fds[0];
1419 t.description = format (0, "DPDK logging pipe");
1420 clib_file_add (&file_main, &t);
1430 vm = vlib_get_main ();
1432 /* make copy of args as rte_eal_init tends to mess up with arg array */
1433 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1434 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1435 conf->eal_init_args[i]);
1437 vec_terminate_c_string (conf->eal_init_args_str);
1439 dpdk_log_warn ("EAL init args: %s", conf->eal_init_args_str);
1440 ret = rte_eal_init (vec_len (conf->eal_init_args),
1441 (char **) conf->eal_init_args);
1443 /* lazy umount hugepages */
1444 umount2 ((char *) huge_dir_path, MNT_DETACH);
1445 rmdir ((char *) huge_dir_path);
1446 vec_free (huge_dir_path);
1449 return clib_error_return (0, "rte_eal_init returned %d", ret);
1451 /* main thread 1st */
1452 if ((error = dpdk_buffer_pools_create (vm)))
1459 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1462 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1464 vnet_main_t *vnm = vnet_get_main ();
1465 struct rte_eth_link prev_link = xd->link;
1467 u8 hw_flags_chg = 0;
1469 /* only update link state for PMD interfaces */
1470 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
1473 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1474 clib_memset (&xd->link, 0, sizeof (xd->link));
1475 rte_eth_link_get_nowait (xd->port_id, &xd->link);
1477 if (LINK_STATE_ELOGS)
1479 vlib_main_t *vm = vlib_get_main ();
1480 ELOG_TYPE_DECLARE (e) =
1483 "update-link-state: sw_if_index %d, admin_up %d,"
1484 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1493 ed = ELOG_DATA (&vm->elog_main, e);
1494 ed->sw_if_index = xd->sw_if_index;
1495 ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1496 ed->old_link_state = (u8)
1497 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
1498 ed->new_link_state = (u8) xd->link.link_status;
1501 if ((xd->link.link_duplex != prev_link.link_duplex))
1504 switch (xd->link.link_duplex)
1506 case ETH_LINK_HALF_DUPLEX:
1507 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1509 case ETH_LINK_FULL_DUPLEX:
1510 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1516 if (xd->link.link_speed != prev_link.link_speed)
1517 vnet_hw_interface_set_link_speed (vnm, xd->hw_if_index,
1518 xd->link.link_speed * 1000);
1520 if (xd->link.link_status != prev_link.link_status)
1524 if (xd->link.link_status)
1525 hw_flags |= VNET_HW_INTERFACE_FLAG_LINK_UP;
1530 if (LINK_STATE_ELOGS)
1532 vlib_main_t *vm = vlib_get_main ();
1534 ELOG_TYPE_DECLARE (e) =
1537 "update-link-state: sw_if_index %d, new flags %d",.format_args
1545 ed = ELOG_DATA (&vm->elog_main, e);
1546 ed->sw_if_index = xd->sw_if_index;
1547 ed->flags = hw_flags;
1549 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, hw_flags);
1554 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1556 clib_error_t *error;
1557 dpdk_main_t *dm = &dpdk_main;
1559 vlib_thread_main_t *tm = vlib_get_thread_main ();
1561 error = dpdk_lib_init (dm);
1564 clib_error_report (error);
1566 tm->worker_thread_release = 1;
1568 f64 now = vlib_time_now (vm);
1569 vec_foreach (xd, dm->devices)
1571 dpdk_update_link_state (xd, now);
1577 * check each time through the loop in case intervals are changed
1579 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1580 dm->link_state_poll_interval : dm->stat_poll_interval;
1582 vlib_process_wait_for_event_or_clock (vm, min_wait);
1584 if (dm->admin_up_down_in_progress)
1585 /* skip the poll if an admin up down is in progress (on any interface) */
1588 vec_foreach (xd, dm->devices)
1590 f64 now = vlib_time_now (vm);
1591 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1592 dpdk_update_counters (xd, now);
1593 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1594 dpdk_update_link_state (xd, now);
1603 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1604 .function = dpdk_process,
1605 .type = VLIB_NODE_TYPE_PROCESS,
1606 .name = "dpdk-process",
1607 .process_log2_n_stack_bytes = 17,
1611 static clib_error_t *
1612 dpdk_init (vlib_main_t * vm)
1614 dpdk_main_t *dm = &dpdk_main;
1615 clib_error_t *error = 0;
1617 /* verify that structs are cacheline aligned */
1618 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1619 "Cache line marker must be 1st element in dpdk_device_t");
1620 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1621 CLIB_CACHE_LINE_BYTES,
1622 "Data in cache line 0 is bigger than cache line size");
1623 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1624 "Cache line marker must be 1st element in frame_queue_trace_t");
1625 STATIC_ASSERT (RTE_CACHE_LINE_SIZE == 1 << CLIB_LOG2_CACHE_LINE_BYTES,
1626 "DPDK RTE CACHE LINE SIZE does not match with 1<<CLIB_LOG2_CACHE_LINE_BYTES");
1628 dpdk_cli_reference ();
1631 dm->vnet_main = vnet_get_main ();
1632 dm->conf = &dpdk_config_main;
1634 dm->conf->nchannels = 4;
1635 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1636 vec_add1 (dm->conf->eal_init_args, (u8 *) "--in-memory");
1638 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1639 dm->buffer_flags_template = (VLIB_BUFFER_TOTAL_LENGTH_VALID |
1640 VLIB_BUFFER_EXT_HDR_VALID |
1641 VNET_BUFFER_F_L4_CHECKSUM_COMPUTED |
1642 VNET_BUFFER_F_L4_CHECKSUM_CORRECT);
1644 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1645 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1647 dm->log_default = vlib_log_register_class ("dpdk", 0);
1652 VLIB_INIT_FUNCTION (dpdk_init);
1655 * fd.io coding-style-patch-verification: ON
1658 * eval: (c-set-style "gnu")