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 u8 af_packet_instance_num = 0;
227 last_pci_addr.as_u32 = ~0;
229 nports = rte_eth_dev_count_avail ();
233 dpdk_log_notice ("DPDK drivers found no Ethernet devices...");
237 dpdk_log_notice ("DPDK drivers found %d ports...", nports);
239 if (dm->conf->enable_tcp_udp_checksum)
240 dm->buffer_flags_template &= ~(VNET_BUFFER_F_L4_CHECKSUM_CORRECT
241 | VNET_BUFFER_F_L4_CHECKSUM_COMPUTED);
243 /* vlib_buffer_t template */
244 vec_validate_aligned (dm->per_thread_data, tm->n_vlib_mains - 1,
245 CLIB_CACHE_LINE_BYTES);
246 for (i = 0; i < tm->n_vlib_mains; i++)
248 dpdk_per_thread_data_t *ptd = vec_elt_at_index (dm->per_thread_data, i);
249 clib_memset (&ptd->buffer_template, 0, sizeof (vlib_buffer_t));
250 ptd->buffer_template.flags = dm->buffer_flags_template;
251 vnet_buffer (&ptd->buffer_template)->sw_if_index[VLIB_TX] = (u32) ~ 0;
255 RTE_ETH_FOREACH_DEV(i)
259 struct rte_eth_dev_info dev_info;
260 struct rte_pci_device *pci_dev;
261 struct rte_eth_link l;
262 dpdk_portid_t next_port_id;
263 dpdk_device_config_t *devconf = 0;
264 vlib_pci_addr_t pci_addr;
267 if (!rte_eth_dev_is_valid_port(i))
270 rte_eth_link_get_nowait (i, &l);
271 rte_eth_dev_info_get (i, &dev_info);
273 if (dev_info.device == 0)
275 dpdk_log_notice ("DPDK bug: missing device info. Skipping %s device",
276 dev_info.driver_name);
280 pci_dev = dpdk_get_pci_device (&dev_info);
284 pci_addr.domain = pci_dev->addr.domain;
285 pci_addr.bus = pci_dev->addr.bus;
286 pci_addr.slot = pci_dev->addr.devid;
287 pci_addr.function = pci_dev->addr.function;
288 p = hash_get (dm->conf->device_config_index_by_pci_addr,
293 /* Create vnet interface */
294 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
295 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
296 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
297 xd->cpu_socket = (i8) rte_eth_dev_socket_id (i);
301 devconf = pool_elt_at_index (dm->conf->dev_confs, p[0]);
302 xd->name = devconf->name;
305 devconf = &dm->conf->default_devconf;
307 /* Handle representor devices that share the same PCI ID */
308 if (dev_info.switch_info.domain_id != RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID)
310 if (dev_info.switch_info.port_id != (uint16_t)-1)
311 xd->interface_name_suffix = format (0, "%d", dev_info.switch_info.port_id);
313 /* Handle interface naming for devices with multiple ports sharing same PCI ID */
315 ((next_port_id = rte_eth_find_next (i + 1)) != RTE_MAX_ETHPORTS))
317 struct rte_eth_dev_info di = { 0 };
318 struct rte_pci_device *next_pci_dev;
319 rte_eth_dev_info_get (next_port_id, &di);
320 next_pci_dev = di.device ? RTE_DEV_TO_PCI (di.device) : 0;
322 pci_addr.as_u32 != last_pci_addr.as_u32 &&
323 memcmp (&pci_dev->addr, &next_pci_dev->addr,
324 sizeof (struct rte_pci_addr)) == 0)
326 xd->interface_name_suffix = format (0, "0");
327 last_pci_addr.as_u32 = pci_addr.as_u32;
328 last_pci_addr_port = i;
330 else if (pci_addr.as_u32 == last_pci_addr.as_u32)
332 xd->interface_name_suffix =
333 format (0, "%u", i - last_pci_addr_port);
337 last_pci_addr.as_u32 = ~0;
341 last_pci_addr.as_u32 = ~0;
343 clib_memcpy (&xd->tx_conf, &dev_info.default_txconf,
344 sizeof (struct rte_eth_txconf));
346 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_IPV4_CKSUM)
348 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_IPV4_CKSUM;
349 xd->flags |= DPDK_DEVICE_FLAG_RX_IP4_CKSUM;
352 if (dm->conf->no_multi_seg)
354 xd->port_conf.txmode.offloads &= ~DEV_TX_OFFLOAD_MULTI_SEGS;
355 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME;
356 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
360 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
361 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
362 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_SCATTER;
363 xd->flags |= DPDK_DEVICE_FLAG_MAYBE_MULTISEG;
366 xd->tx_q_used = clib_min (dev_info.max_tx_queues, tm->n_vlib_mains);
368 if (devconf->num_tx_queues > 0
369 && devconf->num_tx_queues < xd->tx_q_used)
370 xd->tx_q_used = clib_min (xd->tx_q_used, devconf->num_tx_queues);
372 if (devconf->num_rx_queues > 1
373 && dev_info.max_rx_queues >= devconf->num_rx_queues)
375 xd->rx_q_used = devconf->num_rx_queues;
376 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
377 if (devconf->rss_fn == 0)
378 xd->port_conf.rx_adv_conf.rss_conf.rss_hf =
379 ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
382 u64 unsupported_bits;
383 xd->port_conf.rx_adv_conf.rss_conf.rss_hf = devconf->rss_fn;
384 unsupported_bits = xd->port_conf.rx_adv_conf.rss_conf.rss_hf;
385 unsupported_bits &= ~dev_info.flow_type_rss_offloads;
386 if (unsupported_bits)
387 dpdk_log_warn ("Unsupported RSS hash functions: %U",
388 format_dpdk_rss_hf_name, unsupported_bits);
390 xd->port_conf.rx_adv_conf.rss_conf.rss_hf &=
391 dev_info.flow_type_rss_offloads;
396 xd->flags |= DPDK_DEVICE_FLAG_PMD;
398 /* workaround for drivers not setting driver_name */
399 if ((!dev_info.driver_name) && (pci_dev))
400 dev_info.driver_name = pci_dev->driver->driver.name;
402 ASSERT (dev_info.driver_name);
408 #define _(s,f) else if (dev_info.driver_name && \
409 !strcmp(dev_info.driver_name, s)) \
410 xd->pmd = VNET_DPDK_PMD_##f;
416 xd->pmd = VNET_DPDK_PMD_UNKNOWN;
418 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
419 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
420 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
424 /* Drivers with valid speed_capa set */
425 case VNET_DPDK_PMD_E1000EM:
426 case VNET_DPDK_PMD_IGB:
427 case VNET_DPDK_PMD_IXGBE:
428 case VNET_DPDK_PMD_I40E:
429 case VNET_DPDK_PMD_ICE:
430 xd->port_type = port_type_from_speed_capa (&dev_info);
431 xd->supported_flow_actions = VNET_FLOW_ACTION_MARK |
432 VNET_FLOW_ACTION_REDIRECT_TO_NODE |
433 VNET_FLOW_ACTION_REDIRECT_TO_QUEUE |
434 VNET_FLOW_ACTION_BUFFER_ADVANCE |
435 VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP;
437 if (dm->conf->no_tx_checksum_offload == 0)
439 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
440 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
442 DPDK_DEVICE_FLAG_TX_OFFLOAD |
443 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
448 case VNET_DPDK_PMD_CXGBE:
449 case VNET_DPDK_PMD_MLX4:
450 case VNET_DPDK_PMD_MLX5:
451 case VNET_DPDK_PMD_QEDE:
452 case VNET_DPDK_PMD_BNXT:
453 xd->port_type = port_type_from_speed_capa (&dev_info);
457 case VNET_DPDK_PMD_IGBVF:
458 case VNET_DPDK_PMD_IXGBEVF:
459 case VNET_DPDK_PMD_I40EVF:
460 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
461 if (dm->conf->no_tx_checksum_offload == 0)
463 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
464 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
466 DPDK_DEVICE_FLAG_TX_OFFLOAD |
467 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
471 case VNET_DPDK_PMD_THUNDERX:
472 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
474 if (dm->conf->no_tx_checksum_offload == 0)
476 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
477 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
478 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD;
482 case VNET_DPDK_PMD_ENA:
483 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
484 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
487 case VNET_DPDK_PMD_DPAA2:
488 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
492 case VNET_DPDK_PMD_ENIC:
493 xd->port_type = port_type_from_link_speed (l.link_speed);
494 if (dm->conf->enable_tcp_udp_checksum)
495 dpdk_enable_l4_csum_offload (xd);
498 /* Intel Red Rock Canyon */
499 case VNET_DPDK_PMD_FM10K:
500 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
504 case VNET_DPDK_PMD_VIRTIO:
505 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
506 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
507 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
511 case VNET_DPDK_PMD_VMXNET3:
512 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
513 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
516 case VNET_DPDK_PMD_AF_PACKET:
517 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
518 xd->af_packet_instance_num = af_packet_instance_num++;
521 case VNET_DPDK_PMD_VIRTIO_USER:
522 xd->port_type = VNET_DPDK_PORT_TYPE_VIRTIO_USER;
525 case VNET_DPDK_PMD_VHOST_ETHER:
526 xd->port_type = VNET_DPDK_PORT_TYPE_VHOST_ETHER;
529 case VNET_DPDK_PMD_LIOVF_ETHER:
530 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
533 case VNET_DPDK_PMD_FAILSAFE:
534 xd->port_type = VNET_DPDK_PORT_TYPE_FAILSAFE;
535 xd->port_conf.intr_conf.lsc = 1;
538 case VNET_DPDK_PMD_NETVSC:
539 xd->port_type = port_type_from_link_speed (l.link_speed);
543 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
546 if (devconf->num_rx_desc)
547 xd->nb_rx_desc = devconf->num_rx_desc;
550 /* If num_rx_desc is not specified by VPP user, the current CPU is working
551 with 2M page and has no L3 cache, default num_rx_desc is changed to 512
552 from original 1024 to help reduce TLB misses.
554 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
555 && check_l3cache() == 0)
556 xd->nb_rx_desc = 512;
559 if (devconf->num_tx_desc)
560 xd->nb_tx_desc = devconf->num_tx_desc;
563 /* If num_tx_desc is not specified by VPP user, the current CPU is working
564 with 2M page and has no L3 cache, default num_tx_desc is changed to 512
565 from original 1024 to help reduce TLB misses.
567 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
568 && check_l3cache() == 0)
569 xd->nb_tx_desc = 512;
573 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
575 f64 now = vlib_time_now (vm);
577 rnd = (u32) (now * 1e6);
578 rnd = random_u32 (&rnd);
579 clib_memcpy (addr + 2, &rnd, sizeof (rnd));
584 rte_eth_macaddr_get (i, (void *) addr);
586 if (xd->tx_q_used < tm->n_vlib_mains)
587 dpdk_device_lock_init (xd);
590 xd->device_index = xd - dm->devices;
591 xd->per_interface_next_index = ~0;
593 /* assign interface to input thread */
597 error = ethernet_register_interface
598 (dm->vnet_main, dpdk_device_class.index, xd->device_index,
599 /* ethernet address */ addr,
600 &xd->hw_if_index, dpdk_flag_change);
605 * Ensure default mtu is not > the mtu read from the hardware.
606 * Otherwise rte_eth_dev_configure() will fail and the port will
608 * Calculate max_frame_size and mtu supported by NIC
610 if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
613 * This device does not support the platforms's max frame
614 * size. Use it's advertised mru instead.
616 max_rx_frame = dev_info.max_rx_pktlen;
617 mtu = dev_info.max_rx_pktlen - sizeof (ethernet_header_t);
621 /* VPP treats MTU and max_rx_pktlen both equal to
622 * ETHERNET_MAX_PACKET_BYTES, if dev_info.max_rx_pktlen >=
623 * ETHERNET_MAX_PACKET_BYTES + sizeof(ethernet_header_t)
625 if (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
626 sizeof (ethernet_header_t)))
628 mtu = ETHERNET_MAX_PACKET_BYTES;
629 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
632 * Some platforms do not account for Ethernet FCS (4 bytes) in
633 * MTU calculations. To interop with them increase mru but only
634 * if the device's settings can support it.
636 if (dpdk_port_crc_strip_enabled (xd) &&
637 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
638 sizeof (ethernet_header_t) +
646 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
647 mtu = ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
649 if (dpdk_port_crc_strip_enabled (xd) &&
650 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)))
657 if (xd->pmd == VNET_DPDK_PMD_FAILSAFE)
659 /* failsafe device numerables are reported with active device only,
660 * need to query the mtu for current device setup to overwrite
664 if (!rte_eth_dev_get_mtu (i, &dev_mtu))
667 max_rx_frame = mtu + sizeof (ethernet_header_t);
669 if (dpdk_port_crc_strip_enabled (xd))
676 /*Set port rxmode config */
677 xd->port_conf.rxmode.max_rx_pkt_len = max_rx_frame;
679 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->hw_if_index);
680 xd->sw_if_index = sw->sw_if_index;
681 vnet_hw_interface_set_input_node (dm->vnet_main, xd->hw_if_index,
682 dpdk_input_node.index);
684 if (devconf->workers)
688 clib_bitmap_foreach (i, devconf->workers, ({
689 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q++,
690 vdm->first_worker_thread_index + i);
694 for (q = 0; q < xd->rx_q_used; q++)
696 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q, /* any */
700 /*Get vnet hardware interface */
701 hi = vnet_get_hw_interface (dm->vnet_main, xd->hw_if_index);
703 /*Override default max_packet_bytes and max_supported_bytes set in
704 * ethernet_register_interface() above*/
707 hi->max_packet_bytes = mtu;
708 hi->max_supported_packet_bytes = max_rx_frame;
709 hi->numa_node = xd->cpu_socket;
712 if (dm->conf->no_tx_checksum_offload == 0)
713 if (xd->flags & DPDK_DEVICE_FLAG_TX_OFFLOAD && hi != NULL)
714 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD;
716 if (devconf->tso == DPDK_DEVICE_TSO_ON && hi != NULL)
718 /*tcp_udp checksum must be enabled*/
719 if ((dm->conf->enable_tcp_udp_checksum) &&
720 (hi->flags & VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD))
722 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO;
723 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_TSO |
724 DEV_TX_OFFLOAD_UDP_TSO;
727 clib_warning ("%s: TCP/UDP checksum offload must be enabled",
731 dpdk_device_setup (xd);
733 if (vec_len (xd->errors))
734 dpdk_log_err ("setup failed for device %U. Errors:\n %U",
735 format_dpdk_device_name, i,
736 format_dpdk_device_errors, xd);
739 * A note on Cisco VIC (PMD_ENIC) and VLAN:
741 * With Cisco VIC vNIC, every ingress packet is tagged. On a
742 * trunk vNIC (C series "standalone" server), packets on no VLAN
743 * are tagged with vlan 0. On an access vNIC (standalone or B
744 * series "blade" server), packets on the default/native VLAN
745 * are tagged with that vNIC's VLAN. VPP expects these packets
746 * to be untagged, and previously enabled VLAN strip on VIC by
747 * default. But it also broke vlan sub-interfaces.
749 * The VIC adapter has "untag default vlan" ingress VLAN rewrite
750 * mode, which removes tags from these packets. VPP now includes
751 * a local patch for the enic driver to use this untag mode, so
752 * enabling vlan stripping is no longer needed. In future, the
753 * driver + dpdk will have an API to set the mode after
754 * rte_eal_init. Then, this note and local patch will be
759 * VLAN stripping: default to VLAN strip disabled, unless specified
760 * otherwise in the startup config.
763 vlan_off = rte_eth_dev_get_vlan_offload (xd->port_id);
764 if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
766 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
767 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
768 dpdk_log_info ("VLAN strip enabled for interface\n");
770 dpdk_log_warn ("VLAN strip cannot be supported by interface\n");
771 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_VLAN_STRIP;
775 if (vlan_off & ETH_VLAN_STRIP_OFFLOAD)
777 vlan_off &= ~ETH_VLAN_STRIP_OFFLOAD;
778 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
779 dpdk_log_warn ("set VLAN offload failed\n");
781 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP;
785 hi->max_packet_bytes = xd->port_conf.rxmode.max_rx_pkt_len
786 - sizeof (ethernet_header_t);
788 dpdk_log_warn ("hi NULL");
790 if (dm->conf->no_multi_seg)
791 mtu = mtu > ETHER_MAX_LEN ? ETHER_MAX_LEN : mtu;
793 rte_eth_dev_set_mtu (xd->port_id, mtu);
801 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
803 vlib_main_t *vm = vlib_get_main ();
806 int num_whitelisted = vec_len (conf->dev_confs);
807 vlib_pci_device_info_t *d = 0;
808 vlib_pci_addr_t *addr = 0, *addrs;
811 addrs = vlib_pci_get_all_dev_addrs ();
813 vec_foreach (addr, addrs)
815 dpdk_device_config_t * devconf = 0;
816 vec_reset_length (pci_addr);
817 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, addr, 0);
820 vlib_pci_free_device_info (d);
823 d = vlib_pci_get_device_info (vm, addr, &error);
826 clib_error_report (error);
830 if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
835 uword * p = hash_get (conf->device_config_index_by_pci_addr, addr->as_u32);
843 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
846 /* Enforce Device blacklist by vendor and device */
847 for (i = 0; i < vec_len (conf->blacklist_by_pci_vendor_and_device); i++)
850 vendor = (u16)(conf->blacklist_by_pci_vendor_and_device[i] >> 16);
851 device = (u16)(conf->blacklist_by_pci_vendor_and_device[i] & 0xFFFF);
852 if (d->vendor_id == vendor && d->device_id == device)
855 * Expected case: device isn't whitelisted,
860 /* Device is blacklisted */
861 pool_get (conf->dev_confs, devconf);
862 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
863 devconf - conf->dev_confs);
864 devconf->pci_addr.as_u32 = addr->as_u32;
865 devconf->is_blacklisted = 1;
868 else /* explicitly whitelisted, ignore the device blacklist */
874 if (d->vendor_id == 0x1af4 &&
875 (d->device_id == VIRTIO_PCI_LEGACY_DEVICEID_NET ||
876 d->device_id == VIRTIO_PCI_MODERN_DEVICEID_NET))
879 else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
882 * For vmxnet3 PCI, unless it is explicitly specified in the whitelist,
883 * the default is to put it in the blacklist.
887 pool_get (conf->dev_confs, devconf);
888 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
889 devconf - conf->dev_confs);
890 devconf->pci_addr.as_u32 = addr->as_u32;
891 devconf->is_blacklisted = 1;
894 /* all Intel network devices */
895 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
897 /* all Intel QAT devices VFs */
898 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
899 (d->device_id == 0x0443 || d->device_id == 0x18a1 || d->device_id == 0x19e3 ||
900 d->device_id == 0x37c9 || d->device_id == 0x6f55))
903 else if (d->vendor_id == 0x1137 &&
904 (d->device_id == 0x0043 || d->device_id == 0x0071))
907 else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
909 /* Amazon Elastic Network Adapter */
910 else if (d->vendor_id == 0x1d0f && d->device_id >= 0xec20 && d->device_id <= 0xec21)
912 /* Cavium Network Adapter */
913 else if (d->vendor_id == 0x177d && d->device_id == 0x9712)
915 /* Cavium FastlinQ QL41000 Series */
916 else if (d->vendor_id == 0x1077 && d->device_id >= 0x8070 && d->device_id <= 0x8090)
919 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1003 && d->device_id <= 0x1004)
924 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1013 && d->device_id <= 0x101a)
928 /* Broadcom NetXtreme S, and E series only */
929 else if (d->vendor_id == 0x14e4 &&
930 ((d->device_id >= 0x16c0 &&
931 d->device_id != 0x16c6 && d->device_id != 0x16c7 &&
932 d->device_id != 0x16dd && d->device_id != 0x16f7 &&
933 d->device_id != 0x16fd && d->device_id != 0x16fe &&
934 d->device_id != 0x170d && d->device_id != 0x170c &&
935 d->device_id != 0x170e && d->device_id != 0x1712 &&
936 d->device_id != 0x1713) ||
937 (d->device_id == 0x1604 || d->device_id == 0x1605 ||
938 d->device_id == 0x1614 || d->device_id == 0x1606 ||
939 d->device_id == 0x1609 || d->device_id == 0x1614)))
943 dpdk_log_warn ("Unsupported PCI device 0x%04x:0x%04x found "
944 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
949 error = vlib_pci_bind_to_uio (vm, addr, (char *) conf->uio_driver_name);
955 pool_get (conf->dev_confs, devconf);
956 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
957 devconf - conf->dev_confs);
958 devconf->pci_addr.as_u32 = addr->as_u32;
960 devconf->is_blacklisted = 1;
961 clib_error_report (error);
966 vlib_pci_free_device_info (d);
970 dpdk_bind_vmbus_devices_to_uio (dpdk_config_main_t * conf)
973 vlib_vmbus_addr_t *addrs, *addr = 0;
975 addrs = vlib_vmbus_get_all_dev_addrs ();
978 vec_foreach (addr, addrs)
980 error = vlib_vmbus_bind_to_uio (addr);
984 clib_error_report (error);
990 static clib_error_t *
991 dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr,
992 unformat_input_t * input, u8 is_default)
994 clib_error_t *error = 0;
996 dpdk_device_config_t *devconf;
997 unformat_input_t sub_input;
1001 devconf = &conf->default_devconf;
1005 p = hash_get (conf->device_config_index_by_pci_addr, pci_addr.as_u32);
1009 pool_get (conf->dev_confs, devconf);
1010 hash_set (conf->device_config_index_by_pci_addr, pci_addr.as_u32,
1011 devconf - conf->dev_confs);
1014 return clib_error_return (0,
1015 "duplicate configuration for PCI address %U",
1016 format_vlib_pci_addr, &pci_addr);
1019 devconf->pci_addr.as_u32 = pci_addr.as_u32;
1020 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
1025 unformat_skip_white_space (input);
1026 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1028 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
1030 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
1032 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
1034 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
1036 else if (unformat (input, "name %s", &devconf->name))
1038 else if (unformat (input, "workers %U", unformat_bitmap_list,
1043 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
1045 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
1049 else if (unformat (input, "vlan-strip-offload off"))
1050 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
1051 else if (unformat (input, "vlan-strip-offload on"))
1052 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
1053 else if (unformat (input, "tso on"))
1055 devconf->tso = DPDK_DEVICE_TSO_ON;
1057 else if (unformat (input, "tso off"))
1059 devconf->tso = DPDK_DEVICE_TSO_OFF;
1061 else if (unformat (input, "devargs %s", &devconf->devargs))
1065 error = clib_error_return (0, "unknown input `%U'",
1066 format_unformat_error, input);
1074 if (devconf->workers && devconf->num_rx_queues == 0)
1075 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
1076 else if (devconf->workers &&
1077 clib_bitmap_count_set_bits (devconf->workers) !=
1078 devconf->num_rx_queues)
1080 clib_error_return (0,
1081 "%U: number of worker threads must be "
1082 "equal to number of rx queues", format_vlib_pci_addr,
1088 static clib_error_t *
1089 dpdk_log_read_ready (clib_file_t * uf)
1091 unformat_input_t input;
1098 uword len = vec_len (s);
1099 vec_resize (s, len + n_try);
1101 n = read (uf->file_descriptor, s + len, n_try);
1102 if (n < 0 && errno != EAGAIN)
1103 return clib_error_return_unix (0, "read");
1104 _vec_len (s) = len + (n < 0 ? 0 : n);
1107 unformat_init_vector (&input, s);
1109 while (unformat_user (&input, unformat_line, &line))
1111 dpdk_log_notice ("%v", line);
1115 unformat_free (&input);
1119 static clib_error_t *
1120 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
1122 clib_error_t *error = 0;
1123 dpdk_config_main_t *conf = &dpdk_config_main;
1124 vlib_thread_main_t *tm = vlib_get_thread_main ();
1125 dpdk_device_config_t *devconf;
1126 vlib_pci_addr_t pci_addr;
1127 unformat_input_t sub_input;
1128 uword default_hugepage_sz, x;
1131 int num_whitelisted = 0;
1136 u8 *huge_dir_path = 0;
1140 format (0, "%s/hugepages%c", vlib_unix_get_runtime_dir (), 0);
1142 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
1144 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1146 /* Prime the pump */
1147 if (unformat (input, "no-hugetlb"))
1149 vec_add1 (conf->eal_init_args, (u8 *) "--no-huge");
1152 else if (unformat (input, "enable-tcp-udp-checksum"))
1153 conf->enable_tcp_udp_checksum = 1;
1155 else if (unformat (input, "no-tx-checksum-offload"))
1156 conf->no_tx_checksum_offload = 1;
1158 else if (unformat (input, "decimal-interface-names"))
1159 conf->interface_name_format_decimal = 1;
1161 else if (unformat (input, "no-multi-seg"))
1162 conf->no_multi_seg = 1;
1164 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
1168 dpdk_device_config (conf, (vlib_pci_addr_t) (u32) ~ 1, &sub_input,
1176 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
1177 unformat_vlib_cli_sub_input, &sub_input))
1179 error = dpdk_device_config (conf, pci_addr, &sub_input, 0);
1186 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
1188 error = dpdk_device_config (conf, pci_addr, 0, 0);
1195 else if (unformat (input, "num-mem-channels %d", &conf->nchannels))
1196 conf->nchannels_set_manually = 0;
1197 else if (unformat (input, "num-crypto-mbufs %d",
1198 &conf->num_crypto_mbufs))
1200 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
1202 else if (unformat (input, "socket-mem %s", &socket_mem))
1204 else if (unformat (input, "no-pci"))
1207 tmp = format (0, "--no-pci%c", 0);
1208 vec_add1 (conf->eal_init_args, tmp);
1210 else if (unformat (input, "blacklist %x:%x", &vendor, &device))
1212 u32 blacklist_entry;
1213 if (vendor > 0xFFFF)
1214 return clib_error_return (0, "blacklist PCI vendor out of range");
1215 if (device > 0xFFFF)
1216 return clib_error_return (0, "blacklist PCI device out of range");
1217 blacklist_entry = (vendor << 16) | (device & 0xffff);
1218 vec_add1 (conf->blacklist_by_pci_vendor_and_device,
1221 else if (unformat (input, "no-vmbus"))
1224 tmp = format (0, "--no-vmbus%c", 0);
1225 vec_add1 (conf->eal_init_args, tmp);
1229 else if (unformat(input, #a)) \
1231 tmp = format (0, "--%s%c", #a, 0); \
1232 vec_add1 (conf->eal_init_args, tmp); \
1234 foreach_eal_double_hyphen_predicate_arg
1237 else if (unformat(input, #a " %s", &s)) \
1239 if (!strncmp(#a, "file-prefix", 11)) \
1241 tmp = format (0, "--%s%c", #a, 0); \
1242 vec_add1 (conf->eal_init_args, tmp); \
1244 if (!strncmp(#a, "vdev", 4)) \
1245 if (strstr((char*)s, "af_packet")) \
1246 clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
1247 vec_add1 (conf->eal_init_args, s); \
1249 foreach_eal_double_hyphen_arg
1252 else if (unformat(input, #a " %s", &s)) \
1254 tmp = format (0, "-%s%c", #b, 0); \
1255 vec_add1 (conf->eal_init_args, tmp); \
1257 vec_add1 (conf->eal_init_args, s); \
1259 foreach_eal_single_hyphen_arg
1262 else if (unformat(input, #a " %s", &s)) \
1264 tmp = format (0, "-%s%c", #b, 0); \
1265 vec_add1 (conf->eal_init_args, tmp); \
1267 vec_add1 (conf->eal_init_args, s); \
1268 conf->a##_set_manually = 1; \
1270 foreach_eal_single_hyphen_mandatory_arg
1272 else if (unformat (input, "default"))
1275 else if (unformat_skip_white_space (input))
1279 error = clib_error_return (0, "unknown input `%U'",
1280 format_unformat_error, input);
1285 if (!conf->uio_driver_name)
1286 conf->uio_driver_name = format (0, "auto%c", 0);
1288 default_hugepage_sz = clib_mem_get_default_hugepage_size ();
1291 clib_bitmap_foreach (x, tm->cpu_socket_bitmap, (
1295 /* preallocate at least 16MB of hugepages per socket,
1296 if more is needed it is up to consumer to preallocate more */
1297 n_pages = round_pow2 ((uword) 16 << 20, default_hugepage_sz);
1298 n_pages /= default_hugepage_sz;
1300 if ((e = clib_sysfs_prealloc_hugepages(x, 0, n_pages)))
1301 clib_error_report (e);
1307 tmp = format (0, "--file-prefix%c", 0);
1308 vec_add1 (conf->eal_init_args, tmp);
1309 tmp = format (0, "vpp%c", 0);
1310 vec_add1 (conf->eal_init_args, tmp);
1316 /* I'll bet that -c and -n must be the first and second args... */
1317 if (!conf->coremask_set_manually)
1319 vlib_thread_registration_t *tr;
1320 uword *coremask = 0;
1323 /* main thread core */
1324 coremask = clib_bitmap_set (coremask, tm->main_lcore, 1);
1326 for (i = 0; i < vec_len (tm->registrations); i++)
1328 tr = tm->registrations[i];
1329 coremask = clib_bitmap_or (coremask, tr->coremask);
1332 vec_insert (conf->eal_init_args, 2, 1);
1333 conf->eal_init_args[1] = (u8 *) "-c";
1334 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1335 conf->eal_init_args[2] = tmp;
1336 clib_bitmap_free (coremask);
1339 if (!conf->nchannels_set_manually)
1341 vec_insert (conf->eal_init_args, 2, 3);
1342 conf->eal_init_args[3] = (u8 *) "-n";
1343 tmp = format (0, "%d", conf->nchannels);
1344 vec_terminate_c_string (tmp);
1345 conf->eal_init_args[4] = tmp;
1348 if (no_pci == 0 && geteuid () == 0)
1349 dpdk_bind_devices_to_uio (conf);
1351 if (no_vmbus == 0 && geteuid () == 0)
1352 dpdk_bind_vmbus_devices_to_uio (conf);
1355 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1356 devconf->x = conf->default_devconf.x ;
1359 pool_foreach (devconf, conf->dev_confs, ({
1361 /* default per-device config items */
1362 foreach_dpdk_device_config_item
1364 /* copy vlan_strip config from default device */
1365 if (devconf->vlan_strip_offload == 0 &&
1366 conf->default_devconf.vlan_strip_offload > 0)
1367 devconf->vlan_strip_offload =
1368 conf->default_devconf.vlan_strip_offload;
1370 /* copy tso config from default device */
1373 /* copy tso config from default device */
1376 /* add DPDK EAL whitelist/blacklist entry */
1377 if (num_whitelisted > 0 && devconf->is_blacklisted == 0)
1379 tmp = format (0, "-w%c", 0);
1380 vec_add1 (conf->eal_init_args, tmp);
1381 if (devconf->devargs)
1383 tmp = format (0, "%U,%s", format_vlib_pci_addr, &devconf->pci_addr, devconf->devargs, 0);
1387 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1389 vec_add1 (conf->eal_init_args, tmp);
1391 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0)
1393 tmp = format (0, "-b%c", 0);
1394 vec_add1 (conf->eal_init_args, tmp);
1395 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1396 vec_add1 (conf->eal_init_args, tmp);
1403 /* set master-lcore */
1404 tmp = format (0, "--master-lcore%c", 0);
1405 vec_add1 (conf->eal_init_args, tmp);
1406 tmp = format (0, "%u%c", tm->main_lcore, 0);
1407 vec_add1 (conf->eal_init_args, tmp);
1411 clib_warning ("socket-mem argument is deprecated");
1413 /* NULL terminate the "argv" vector, in case of stupidity */
1414 vec_add1 (conf->eal_init_args, 0);
1415 _vec_len (conf->eal_init_args) -= 1;
1417 /* Set up DPDK eal and packet mbuf pool early. */
1419 int log_fds[2] = { 0 };
1420 if (pipe (log_fds) == 0)
1422 if (fcntl (log_fds[1], F_SETFL, O_NONBLOCK) == 0)
1424 FILE *f = fdopen (log_fds[1], "a");
1425 if (f && rte_openlog_stream (f) == 0)
1427 clib_file_t t = { 0 };
1428 t.read_function = dpdk_log_read_ready;
1429 t.file_descriptor = log_fds[0];
1430 t.description = format (0, "DPDK logging pipe");
1431 clib_file_add (&file_main, &t);
1441 vm = vlib_get_main ();
1443 /* make copy of args as rte_eal_init tends to mess up with arg array */
1444 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1445 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1446 conf->eal_init_args[i]);
1448 vec_terminate_c_string (conf->eal_init_args_str);
1450 dpdk_log_warn ("EAL init args: %s", conf->eal_init_args_str);
1451 ret = rte_eal_init (vec_len (conf->eal_init_args),
1452 (char **) conf->eal_init_args);
1454 /* lazy umount hugepages */
1455 umount2 ((char *) huge_dir_path, MNT_DETACH);
1456 rmdir ((char *) huge_dir_path);
1457 vec_free (huge_dir_path);
1460 return clib_error_return (0, "rte_eal_init returned %d", ret);
1462 /* main thread 1st */
1463 if ((error = dpdk_buffer_pools_create (vm)))
1470 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1473 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1475 vnet_main_t *vnm = vnet_get_main ();
1476 struct rte_eth_link prev_link = xd->link;
1478 u8 hw_flags_chg = 0;
1480 /* only update link state for PMD interfaces */
1481 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
1484 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1485 clib_memset (&xd->link, 0, sizeof (xd->link));
1486 rte_eth_link_get_nowait (xd->port_id, &xd->link);
1488 if (LINK_STATE_ELOGS)
1490 vlib_main_t *vm = vlib_get_main ();
1491 ELOG_TYPE_DECLARE (e) =
1494 "update-link-state: sw_if_index %d, admin_up %d,"
1495 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1504 ed = ELOG_DATA (&vm->elog_main, e);
1505 ed->sw_if_index = xd->sw_if_index;
1506 ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1507 ed->old_link_state = (u8)
1508 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
1509 ed->new_link_state = (u8) xd->link.link_status;
1512 if ((xd->link.link_duplex != prev_link.link_duplex))
1515 switch (xd->link.link_duplex)
1517 case ETH_LINK_HALF_DUPLEX:
1518 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1520 case ETH_LINK_FULL_DUPLEX:
1521 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1527 if (xd->link.link_speed != prev_link.link_speed)
1528 vnet_hw_interface_set_link_speed (vnm, xd->hw_if_index,
1529 xd->link.link_speed * 1000);
1531 if (xd->link.link_status != prev_link.link_status)
1535 if (xd->link.link_status)
1536 hw_flags |= VNET_HW_INTERFACE_FLAG_LINK_UP;
1541 if (LINK_STATE_ELOGS)
1543 vlib_main_t *vm = vlib_get_main ();
1545 ELOG_TYPE_DECLARE (e) =
1548 "update-link-state: sw_if_index %d, new flags %d",.format_args
1556 ed = ELOG_DATA (&vm->elog_main, e);
1557 ed->sw_if_index = xd->sw_if_index;
1558 ed->flags = hw_flags;
1560 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, hw_flags);
1565 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1567 clib_error_t *error;
1568 dpdk_main_t *dm = &dpdk_main;
1570 vlib_thread_main_t *tm = vlib_get_thread_main ();
1572 error = dpdk_lib_init (dm);
1575 clib_error_report (error);
1577 tm->worker_thread_release = 1;
1579 f64 now = vlib_time_now (vm);
1580 vec_foreach (xd, dm->devices)
1582 dpdk_update_link_state (xd, now);
1588 * check each time through the loop in case intervals are changed
1590 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1591 dm->link_state_poll_interval : dm->stat_poll_interval;
1593 vlib_process_wait_for_event_or_clock (vm, min_wait);
1595 if (dm->admin_up_down_in_progress)
1596 /* skip the poll if an admin up down is in progress (on any interface) */
1599 vec_foreach (xd, dm->devices)
1601 f64 now = vlib_time_now (vm);
1602 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1603 dpdk_update_counters (xd, now);
1604 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1605 dpdk_update_link_state (xd, now);
1614 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1615 .function = dpdk_process,
1616 .type = VLIB_NODE_TYPE_PROCESS,
1617 .name = "dpdk-process",
1618 .process_log2_n_stack_bytes = 17,
1622 static clib_error_t *
1623 dpdk_init (vlib_main_t * vm)
1625 dpdk_main_t *dm = &dpdk_main;
1626 clib_error_t *error = 0;
1628 /* verify that structs are cacheline aligned */
1629 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1630 "Cache line marker must be 1st element in dpdk_device_t");
1631 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1632 CLIB_CACHE_LINE_BYTES,
1633 "Data in cache line 0 is bigger than cache line size");
1634 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1635 "Cache line marker must be 1st element in frame_queue_trace_t");
1636 STATIC_ASSERT (RTE_CACHE_LINE_SIZE == 1 << CLIB_LOG2_CACHE_LINE_BYTES,
1637 "DPDK RTE CACHE LINE SIZE does not match with 1<<CLIB_LOG2_CACHE_LINE_BYTES");
1639 dpdk_cli_reference ();
1642 dm->vnet_main = vnet_get_main ();
1643 dm->conf = &dpdk_config_main;
1645 dm->conf->nchannels = 4;
1646 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1647 vec_add1 (dm->conf->eal_init_args, (u8 *) "--in-memory");
1649 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1650 dm->buffer_flags_template = (VLIB_BUFFER_TOTAL_LENGTH_VALID |
1651 VLIB_BUFFER_EXT_HDR_VALID |
1652 VNET_BUFFER_F_L4_CHECKSUM_COMPUTED |
1653 VNET_BUFFER_F_L4_CHECKSUM_CORRECT);
1655 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1656 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1658 dm->log_default = vlib_log_register_class ("dpdk", 0);
1663 VLIB_INIT_FUNCTION (dpdk_init);
1666 * fd.io coding-style-patch-verification: ON
1669 * eval: (c-set-style "gnu")