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->enable_tcp_udp_checksum)
354 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_UDP_CKSUM)
355 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_UDP_CKSUM;
356 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_TCP_CKSUM)
357 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_TCP_CKSUM;
360 if (dm->conf->no_multi_seg)
362 xd->port_conf.txmode.offloads &= ~DEV_TX_OFFLOAD_MULTI_SEGS;
363 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME;
364 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
368 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
369 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
370 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_SCATTER;
371 xd->flags |= DPDK_DEVICE_FLAG_MAYBE_MULTISEG;
374 xd->tx_q_used = clib_min (dev_info.max_tx_queues, tm->n_vlib_mains);
376 if (devconf->num_tx_queues > 0
377 && devconf->num_tx_queues < xd->tx_q_used)
378 xd->tx_q_used = clib_min (xd->tx_q_used, devconf->num_tx_queues);
380 if (devconf->num_rx_queues > 1
381 && dev_info.max_rx_queues >= devconf->num_rx_queues)
383 xd->rx_q_used = devconf->num_rx_queues;
384 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
385 if (devconf->rss_fn == 0)
386 xd->port_conf.rx_adv_conf.rss_conf.rss_hf =
387 ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
390 u64 unsupported_bits;
391 xd->port_conf.rx_adv_conf.rss_conf.rss_hf = devconf->rss_fn;
392 unsupported_bits = xd->port_conf.rx_adv_conf.rss_conf.rss_hf;
393 unsupported_bits &= ~dev_info.flow_type_rss_offloads;
394 if (unsupported_bits)
395 dpdk_log_warn ("Unsupported RSS hash functions: %U",
396 format_dpdk_rss_hf_name, unsupported_bits);
398 xd->port_conf.rx_adv_conf.rss_conf.rss_hf &=
399 dev_info.flow_type_rss_offloads;
404 xd->flags |= DPDK_DEVICE_FLAG_PMD;
406 /* workaround for drivers not setting driver_name */
407 if ((!dev_info.driver_name) && (pci_dev))
408 dev_info.driver_name = pci_dev->driver->driver.name;
410 ASSERT (dev_info.driver_name);
416 #define _(s,f) else if (dev_info.driver_name && \
417 !strcmp(dev_info.driver_name, s)) \
418 xd->pmd = VNET_DPDK_PMD_##f;
424 xd->pmd = VNET_DPDK_PMD_UNKNOWN;
426 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
427 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
428 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
432 /* Drivers with valid speed_capa set */
433 case VNET_DPDK_PMD_E1000EM:
434 case VNET_DPDK_PMD_IGB:
435 case VNET_DPDK_PMD_IXGBE:
436 case VNET_DPDK_PMD_I40E:
437 case VNET_DPDK_PMD_ICE:
438 xd->port_type = port_type_from_speed_capa (&dev_info);
439 xd->supported_flow_actions = VNET_FLOW_ACTION_MARK |
440 VNET_FLOW_ACTION_REDIRECT_TO_NODE |
441 VNET_FLOW_ACTION_REDIRECT_TO_QUEUE |
442 VNET_FLOW_ACTION_BUFFER_ADVANCE |
443 VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP |
444 VNET_FLOW_ACTION_RSS;
446 if (dm->conf->no_tx_checksum_offload == 0)
448 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
449 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
451 DPDK_DEVICE_FLAG_TX_OFFLOAD |
452 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
457 case VNET_DPDK_PMD_CXGBE:
458 case VNET_DPDK_PMD_MLX4:
459 case VNET_DPDK_PMD_MLX5:
460 case VNET_DPDK_PMD_QEDE:
461 case VNET_DPDK_PMD_BNXT:
462 xd->port_type = port_type_from_speed_capa (&dev_info);
466 case VNET_DPDK_PMD_IGBVF:
467 case VNET_DPDK_PMD_IXGBEVF:
468 case VNET_DPDK_PMD_I40EVF:
469 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
470 if (dm->conf->no_tx_checksum_offload == 0)
472 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
473 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
475 DPDK_DEVICE_FLAG_TX_OFFLOAD |
476 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
481 case VNET_DPDK_PMD_IAVF:
482 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
483 xd->supported_flow_actions = VNET_FLOW_ACTION_MARK |
484 VNET_FLOW_ACTION_REDIRECT_TO_NODE |
485 VNET_FLOW_ACTION_REDIRECT_TO_QUEUE |
486 VNET_FLOW_ACTION_BUFFER_ADVANCE |
487 VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP;
489 if (dm->conf->no_tx_checksum_offload == 0)
491 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
492 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
494 DPDK_DEVICE_FLAG_TX_OFFLOAD |
495 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
499 case VNET_DPDK_PMD_THUNDERX:
500 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
502 if (dm->conf->no_tx_checksum_offload == 0)
504 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
505 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
506 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD;
510 case VNET_DPDK_PMD_ENA:
511 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
512 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
515 case VNET_DPDK_PMD_DPAA2:
516 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
520 case VNET_DPDK_PMD_ENIC:
521 xd->port_type = port_type_from_link_speed (l.link_speed);
522 if (dm->conf->enable_tcp_udp_checksum)
523 dpdk_enable_l4_csum_offload (xd);
526 /* Intel Red Rock Canyon */
527 case VNET_DPDK_PMD_FM10K:
528 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
532 case VNET_DPDK_PMD_VIRTIO:
533 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_NONE;
534 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
535 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
536 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
540 case VNET_DPDK_PMD_VMXNET3:
541 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
542 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
545 case VNET_DPDK_PMD_AF_PACKET:
546 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
547 xd->af_packet_instance_num = af_packet_instance_num++;
550 case VNET_DPDK_PMD_VIRTIO_USER:
551 xd->port_type = VNET_DPDK_PORT_TYPE_VIRTIO_USER;
554 case VNET_DPDK_PMD_VHOST_ETHER:
555 xd->port_type = VNET_DPDK_PORT_TYPE_VHOST_ETHER;
558 case VNET_DPDK_PMD_LIOVF_ETHER:
559 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
562 case VNET_DPDK_PMD_FAILSAFE:
563 xd->port_type = VNET_DPDK_PORT_TYPE_FAILSAFE;
564 xd->port_conf.intr_conf.lsc = 1;
567 case VNET_DPDK_PMD_NETVSC:
568 xd->port_type = port_type_from_link_speed (l.link_speed);
572 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
575 if (devconf->num_rx_desc)
576 xd->nb_rx_desc = devconf->num_rx_desc;
579 /* If num_rx_desc is not specified by VPP user, the current CPU is working
580 with 2M page and has no L3 cache, default num_rx_desc is changed to 512
581 from original 1024 to help reduce TLB misses.
583 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
584 && check_l3cache() == 0)
585 xd->nb_rx_desc = 512;
588 if (devconf->num_tx_desc)
589 xd->nb_tx_desc = devconf->num_tx_desc;
592 /* If num_tx_desc is not specified by VPP user, the current CPU is working
593 with 2M page and has no L3 cache, default num_tx_desc is changed to 512
594 from original 1024 to help reduce TLB misses.
596 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
597 && check_l3cache() == 0)
598 xd->nb_tx_desc = 512;
602 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
604 f64 now = vlib_time_now (vm);
606 rnd = (u32) (now * 1e6);
607 rnd = random_u32 (&rnd);
608 clib_memcpy (addr + 2, &rnd, sizeof (rnd));
613 rte_eth_macaddr_get (i, (void *) addr);
615 if (xd->tx_q_used < tm->n_vlib_mains)
616 dpdk_device_lock_init (xd);
619 xd->device_index = xd - dm->devices;
620 xd->per_interface_next_index = ~0;
622 /* assign interface to input thread */
626 error = ethernet_register_interface
627 (dm->vnet_main, dpdk_device_class.index, xd->device_index,
628 /* ethernet address */ addr,
629 &xd->hw_if_index, dpdk_flag_change);
634 * Ensure default mtu is not > the mtu read from the hardware.
635 * Otherwise rte_eth_dev_configure() will fail and the port will
637 * Calculate max_frame_size and mtu supported by NIC
639 if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
642 * This device does not support the platforms's max frame
643 * size. Use it's advertised mru instead.
645 max_rx_frame = dev_info.max_rx_pktlen;
646 mtu = dev_info.max_rx_pktlen - sizeof (ethernet_header_t);
650 /* VPP treats MTU and max_rx_pktlen both equal to
651 * ETHERNET_MAX_PACKET_BYTES, if dev_info.max_rx_pktlen >=
652 * ETHERNET_MAX_PACKET_BYTES + sizeof(ethernet_header_t)
654 if (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
655 sizeof (ethernet_header_t)))
657 mtu = ETHERNET_MAX_PACKET_BYTES;
658 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
661 * Some platforms do not account for Ethernet FCS (4 bytes) in
662 * MTU calculations. To interop with them increase mru but only
663 * if the device's settings can support it.
665 if (dpdk_port_crc_strip_enabled (xd) &&
666 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
667 sizeof (ethernet_header_t) +
675 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
676 mtu = ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
678 if (dpdk_port_crc_strip_enabled (xd) &&
679 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)))
686 if (xd->pmd == VNET_DPDK_PMD_FAILSAFE)
688 /* failsafe device numerables are reported with active device only,
689 * need to query the mtu for current device setup to overwrite
693 if (!rte_eth_dev_get_mtu (i, &dev_mtu))
696 max_rx_frame = mtu + sizeof (ethernet_header_t);
698 if (dpdk_port_crc_strip_enabled (xd))
705 /*Set port rxmode config */
706 xd->port_conf.rxmode.max_rx_pkt_len = max_rx_frame;
708 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->hw_if_index);
709 xd->sw_if_index = sw->sw_if_index;
710 vnet_hw_interface_set_input_node (dm->vnet_main, xd->hw_if_index,
711 dpdk_input_node.index);
713 if (devconf->workers)
717 clib_bitmap_foreach (i, devconf->workers, ({
718 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q++,
719 vdm->first_worker_thread_index + i);
723 for (q = 0; q < xd->rx_q_used; q++)
725 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q, /* any */
729 /*Get vnet hardware interface */
730 hi = vnet_get_hw_interface (dm->vnet_main, xd->hw_if_index);
732 /*Override default max_packet_bytes and max_supported_bytes set in
733 * ethernet_register_interface() above*/
736 hi->max_packet_bytes = mtu;
737 hi->max_supported_packet_bytes = max_rx_frame;
738 hi->numa_node = xd->cpu_socket;
741 if (dm->conf->no_tx_checksum_offload == 0)
742 if (xd->flags & DPDK_DEVICE_FLAG_TX_OFFLOAD && hi != NULL)
743 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD;
745 if (devconf->tso == DPDK_DEVICE_TSO_ON && hi != NULL)
747 /*tcp_udp checksum must be enabled*/
748 if ((dm->conf->enable_tcp_udp_checksum) &&
749 (hi->flags & VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD))
751 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO;
752 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_TSO |
753 DEV_TX_OFFLOAD_UDP_TSO;
756 clib_warning ("%s: TCP/UDP checksum offload must be enabled",
760 dpdk_device_setup (xd);
762 if (vec_len (xd->errors))
763 dpdk_log_err ("setup failed for device %U. Errors:\n %U",
764 format_dpdk_device_name, i,
765 format_dpdk_device_errors, xd);
768 * A note on Cisco VIC (PMD_ENIC) and VLAN:
770 * With Cisco VIC vNIC, every ingress packet is tagged. On a
771 * trunk vNIC (C series "standalone" server), packets on no VLAN
772 * are tagged with vlan 0. On an access vNIC (standalone or B
773 * series "blade" server), packets on the default/native VLAN
774 * are tagged with that vNIC's VLAN. VPP expects these packets
775 * to be untagged, and previously enabled VLAN strip on VIC by
776 * default. But it also broke vlan sub-interfaces.
778 * The VIC adapter has "untag default vlan" ingress VLAN rewrite
779 * mode, which removes tags from these packets. VPP now includes
780 * a local patch for the enic driver to use this untag mode, so
781 * enabling vlan stripping is no longer needed. In future, the
782 * driver + dpdk will have an API to set the mode after
783 * rte_eal_init. Then, this note and local patch will be
788 * VLAN stripping: default to VLAN strip disabled, unless specified
789 * otherwise in the startup config.
792 vlan_off = rte_eth_dev_get_vlan_offload (xd->port_id);
793 if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
795 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
796 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
797 dpdk_log_info ("VLAN strip enabled for interface\n");
799 dpdk_log_warn ("VLAN strip cannot be supported by interface\n");
800 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_VLAN_STRIP;
804 if (vlan_off & ETH_VLAN_STRIP_OFFLOAD)
806 vlan_off &= ~ETH_VLAN_STRIP_OFFLOAD;
807 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
808 dpdk_log_warn ("set VLAN offload failed\n");
810 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP;
814 hi->max_packet_bytes = xd->port_conf.rxmode.max_rx_pkt_len
815 - sizeof (ethernet_header_t);
817 dpdk_log_warn ("hi NULL");
819 if (dm->conf->no_multi_seg)
820 mtu = mtu > ETHER_MAX_LEN ? ETHER_MAX_LEN : mtu;
822 rte_eth_dev_set_mtu (xd->port_id, mtu);
830 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
832 vlib_main_t *vm = vlib_get_main ();
835 int num_whitelisted = vec_len (conf->dev_confs);
836 vlib_pci_device_info_t *d = 0;
837 vlib_pci_addr_t *addr = 0, *addrs;
840 addrs = vlib_pci_get_all_dev_addrs ();
842 vec_foreach (addr, addrs)
844 dpdk_device_config_t * devconf = 0;
845 vec_reset_length (pci_addr);
846 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, addr, 0);
849 vlib_pci_free_device_info (d);
852 d = vlib_pci_get_device_info (vm, addr, &error);
855 clib_error_report (error);
859 if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
864 uword * p = hash_get (conf->device_config_index_by_pci_addr, addr->as_u32);
872 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
875 /* Enforce Device blacklist by vendor and device */
876 for (i = 0; i < vec_len (conf->blacklist_by_pci_vendor_and_device); i++)
879 vendor = (u16)(conf->blacklist_by_pci_vendor_and_device[i] >> 16);
880 device = (u16)(conf->blacklist_by_pci_vendor_and_device[i] & 0xFFFF);
881 if (d->vendor_id == vendor && d->device_id == device)
884 * Expected case: device isn't whitelisted,
889 /* Device is blacklisted */
890 pool_get (conf->dev_confs, devconf);
891 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
892 devconf - conf->dev_confs);
893 devconf->pci_addr.as_u32 = addr->as_u32;
894 devconf->is_blacklisted = 1;
897 else /* explicitly whitelisted, ignore the device blacklist */
903 if (d->vendor_id == 0x1af4 &&
904 (d->device_id == VIRTIO_PCI_LEGACY_DEVICEID_NET ||
905 d->device_id == VIRTIO_PCI_MODERN_DEVICEID_NET))
908 else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
911 * For vmxnet3 PCI, unless it is explicitly specified in the whitelist,
912 * the default is to put it in the blacklist.
916 pool_get (conf->dev_confs, devconf);
917 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
918 devconf - conf->dev_confs);
919 devconf->pci_addr.as_u32 = addr->as_u32;
920 devconf->is_blacklisted = 1;
923 /* all Intel network devices */
924 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
926 /* all Intel QAT devices VFs */
927 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
928 (d->device_id == 0x0443 || d->device_id == 0x18a1 || d->device_id == 0x19e3 ||
929 d->device_id == 0x37c9 || d->device_id == 0x6f55))
932 else if (d->vendor_id == 0x1137 &&
933 (d->device_id == 0x0043 || d->device_id == 0x0071))
936 else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
938 /* Amazon Elastic Network Adapter */
939 else if (d->vendor_id == 0x1d0f && d->device_id >= 0xec20 && d->device_id <= 0xec21)
941 /* Cavium Network Adapter */
942 else if (d->vendor_id == 0x177d && d->device_id == 0x9712)
944 /* Cavium FastlinQ QL41000 Series */
945 else if (d->vendor_id == 0x1077 && d->device_id >= 0x8070 && d->device_id <= 0x8090)
947 /* Mellanox CX3, CX3VF */
948 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1003 && d->device_id <= 0x1004)
952 /* Mellanox CX4, CX4VF, CX4LX, CX4LXVF, CX5, CX5VF, CX5EX, CX5EXVF */
953 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1013 && d->device_id <= 0x101a)
957 /* Mellanox CX6, CX6VF, CX6DX, CX6DXVF */
958 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x101b && d->device_id <= 0x101e)
962 /* Broadcom NetXtreme S, and E series only */
963 else if (d->vendor_id == 0x14e4 &&
964 ((d->device_id >= 0x16c0 &&
965 d->device_id != 0x16c6 && d->device_id != 0x16c7 &&
966 d->device_id != 0x16dd && d->device_id != 0x16f7 &&
967 d->device_id != 0x16fd && d->device_id != 0x16fe &&
968 d->device_id != 0x170d && d->device_id != 0x170c &&
969 d->device_id != 0x170e && d->device_id != 0x1712 &&
970 d->device_id != 0x1713) ||
971 (d->device_id == 0x1604 || d->device_id == 0x1605 ||
972 d->device_id == 0x1614 || d->device_id == 0x1606 ||
973 d->device_id == 0x1609 || d->device_id == 0x1614)))
977 dpdk_log_warn ("Unsupported PCI device 0x%04x:0x%04x found "
978 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
983 error = vlib_pci_bind_to_uio (vm, addr, (char *) conf->uio_driver_name);
989 pool_get (conf->dev_confs, devconf);
990 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
991 devconf - conf->dev_confs);
992 devconf->pci_addr.as_u32 = addr->as_u32;
994 devconf->is_blacklisted = 1;
995 clib_error_report (error);
1000 vlib_pci_free_device_info (d);
1004 dpdk_bind_vmbus_devices_to_uio (dpdk_config_main_t * conf)
1006 clib_error_t *error;
1007 vlib_vmbus_addr_t *addrs, *addr = 0;
1009 addrs = vlib_vmbus_get_all_dev_addrs ();
1012 vec_foreach (addr, addrs)
1014 error = vlib_vmbus_bind_to_uio (addr);
1018 clib_error_report (error);
1024 static clib_error_t *
1025 dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr,
1026 unformat_input_t * input, u8 is_default)
1028 clib_error_t *error = 0;
1030 dpdk_device_config_t *devconf;
1031 unformat_input_t sub_input;
1035 devconf = &conf->default_devconf;
1039 p = hash_get (conf->device_config_index_by_pci_addr, pci_addr.as_u32);
1043 pool_get (conf->dev_confs, devconf);
1044 hash_set (conf->device_config_index_by_pci_addr, pci_addr.as_u32,
1045 devconf - conf->dev_confs);
1048 return clib_error_return (0,
1049 "duplicate configuration for PCI address %U",
1050 format_vlib_pci_addr, &pci_addr);
1053 devconf->pci_addr.as_u32 = pci_addr.as_u32;
1054 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
1059 unformat_skip_white_space (input);
1060 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1062 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
1064 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
1066 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
1068 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
1070 else if (unformat (input, "name %s", &devconf->name))
1072 else if (unformat (input, "workers %U", unformat_bitmap_list,
1077 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
1079 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
1083 else if (unformat (input, "vlan-strip-offload off"))
1084 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
1085 else if (unformat (input, "vlan-strip-offload on"))
1086 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
1087 else if (unformat (input, "tso on"))
1089 devconf->tso = DPDK_DEVICE_TSO_ON;
1091 else if (unformat (input, "tso off"))
1093 devconf->tso = DPDK_DEVICE_TSO_OFF;
1095 else if (unformat (input, "devargs %s", &devconf->devargs))
1099 error = clib_error_return (0, "unknown input `%U'",
1100 format_unformat_error, input);
1108 if (devconf->workers && devconf->num_rx_queues == 0)
1109 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
1110 else if (devconf->workers &&
1111 clib_bitmap_count_set_bits (devconf->workers) !=
1112 devconf->num_rx_queues)
1114 clib_error_return (0,
1115 "%U: number of worker threads must be "
1116 "equal to number of rx queues", format_vlib_pci_addr,
1122 static clib_error_t *
1123 dpdk_log_read_ready (clib_file_t * uf)
1125 unformat_input_t input;
1132 uword len = vec_len (s);
1133 vec_resize (s, len + n_try);
1135 n = read (uf->file_descriptor, s + len, n_try);
1136 if (n < 0 && errno != EAGAIN)
1137 return clib_error_return_unix (0, "read");
1138 _vec_len (s) = len + (n < 0 ? 0 : n);
1141 unformat_init_vector (&input, s);
1143 while (unformat_user (&input, unformat_line, &line))
1145 dpdk_log_notice ("%v", line);
1149 unformat_free (&input);
1153 static clib_error_t *
1154 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
1156 clib_error_t *error = 0;
1157 dpdk_config_main_t *conf = &dpdk_config_main;
1158 vlib_thread_main_t *tm = vlib_get_thread_main ();
1159 dpdk_device_config_t *devconf;
1160 vlib_pci_addr_t pci_addr;
1161 unformat_input_t sub_input;
1162 uword default_hugepage_sz, x;
1165 int num_whitelisted = 0;
1170 u8 *huge_dir_path = 0;
1174 format (0, "%s/hugepages%c", vlib_unix_get_runtime_dir (), 0);
1176 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
1178 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1180 /* Prime the pump */
1181 if (unformat (input, "no-hugetlb"))
1183 vec_add1 (conf->eal_init_args, (u8 *) "--no-huge");
1186 else if (unformat (input, "enable-tcp-udp-checksum"))
1187 conf->enable_tcp_udp_checksum = 1;
1189 else if (unformat (input, "no-tx-checksum-offload"))
1190 conf->no_tx_checksum_offload = 1;
1192 else if (unformat (input, "decimal-interface-names"))
1193 conf->interface_name_format_decimal = 1;
1195 else if (unformat (input, "no-multi-seg"))
1196 conf->no_multi_seg = 1;
1198 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
1202 dpdk_device_config (conf, (vlib_pci_addr_t) (u32) ~ 1, &sub_input,
1210 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
1211 unformat_vlib_cli_sub_input, &sub_input))
1213 error = dpdk_device_config (conf, pci_addr, &sub_input, 0);
1220 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
1222 error = dpdk_device_config (conf, pci_addr, 0, 0);
1229 else if (unformat (input, "num-mem-channels %d", &conf->nchannels))
1230 conf->nchannels_set_manually = 0;
1231 else if (unformat (input, "num-crypto-mbufs %d",
1232 &conf->num_crypto_mbufs))
1234 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
1236 else if (unformat (input, "socket-mem %s", &socket_mem))
1238 else if (unformat (input, "no-pci"))
1241 tmp = format (0, "--no-pci%c", 0);
1242 vec_add1 (conf->eal_init_args, tmp);
1244 else if (unformat (input, "blacklist %x:%x", &vendor, &device))
1246 u32 blacklist_entry;
1247 if (vendor > 0xFFFF)
1248 return clib_error_return (0, "blacklist PCI vendor out of range");
1249 if (device > 0xFFFF)
1250 return clib_error_return (0, "blacklist PCI device out of range");
1251 blacklist_entry = (vendor << 16) | (device & 0xffff);
1252 vec_add1 (conf->blacklist_by_pci_vendor_and_device,
1255 else if (unformat (input, "no-vmbus"))
1258 tmp = format (0, "--no-vmbus%c", 0);
1259 vec_add1 (conf->eal_init_args, tmp);
1263 else if (unformat(input, #a)) \
1265 tmp = format (0, "--%s%c", #a, 0); \
1266 vec_add1 (conf->eal_init_args, tmp); \
1268 foreach_eal_double_hyphen_predicate_arg
1271 else if (unformat(input, #a " %s", &s)) \
1273 if (!strncmp(#a, "file-prefix", 11)) \
1275 tmp = format (0, "--%s%c", #a, 0); \
1276 vec_add1 (conf->eal_init_args, tmp); \
1278 if (!strncmp(#a, "vdev", 4)) \
1279 if (strstr((char*)s, "af_packet")) \
1280 clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
1281 vec_add1 (conf->eal_init_args, s); \
1283 foreach_eal_double_hyphen_arg
1286 else if (unformat(input, #a " %s", &s)) \
1288 tmp = format (0, "-%s%c", #b, 0); \
1289 vec_add1 (conf->eal_init_args, tmp); \
1291 vec_add1 (conf->eal_init_args, s); \
1293 foreach_eal_single_hyphen_arg
1296 else if (unformat(input, #a " %s", &s)) \
1298 tmp = format (0, "-%s%c", #b, 0); \
1299 vec_add1 (conf->eal_init_args, tmp); \
1301 vec_add1 (conf->eal_init_args, s); \
1302 conf->a##_set_manually = 1; \
1304 foreach_eal_single_hyphen_mandatory_arg
1306 else if (unformat (input, "default"))
1309 else if (unformat_skip_white_space (input))
1313 error = clib_error_return (0, "unknown input `%U'",
1314 format_unformat_error, input);
1319 if (!conf->uio_driver_name)
1320 conf->uio_driver_name = format (0, "auto%c", 0);
1322 default_hugepage_sz = clib_mem_get_default_hugepage_size ();
1325 clib_bitmap_foreach (x, tm->cpu_socket_bitmap, (
1329 /* preallocate at least 16MB of hugepages per socket,
1330 if more is needed it is up to consumer to preallocate more */
1331 n_pages = round_pow2 ((uword) 16 << 20, default_hugepage_sz);
1332 n_pages /= default_hugepage_sz;
1334 if ((e = clib_sysfs_prealloc_hugepages(x, 0, n_pages)))
1335 clib_error_report (e);
1341 tmp = format (0, "--file-prefix%c", 0);
1342 vec_add1 (conf->eal_init_args, tmp);
1343 tmp = format (0, "vpp%c", 0);
1344 vec_add1 (conf->eal_init_args, tmp);
1350 /* I'll bet that -c and -n must be the first and second args... */
1351 if (!conf->coremask_set_manually)
1353 vlib_thread_registration_t *tr;
1354 uword *coremask = 0;
1357 /* main thread core */
1358 coremask = clib_bitmap_set (coremask, tm->main_lcore, 1);
1360 for (i = 0; i < vec_len (tm->registrations); i++)
1362 tr = tm->registrations[i];
1363 coremask = clib_bitmap_or (coremask, tr->coremask);
1366 vec_insert (conf->eal_init_args, 2, 1);
1367 conf->eal_init_args[1] = (u8 *) "-c";
1368 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1369 conf->eal_init_args[2] = tmp;
1370 clib_bitmap_free (coremask);
1373 if (!conf->nchannels_set_manually)
1375 vec_insert (conf->eal_init_args, 2, 3);
1376 conf->eal_init_args[3] = (u8 *) "-n";
1377 tmp = format (0, "%d", conf->nchannels);
1378 vec_terminate_c_string (tmp);
1379 conf->eal_init_args[4] = tmp;
1382 if (no_pci == 0 && geteuid () == 0)
1383 dpdk_bind_devices_to_uio (conf);
1385 if (no_vmbus == 0 && geteuid () == 0)
1386 dpdk_bind_vmbus_devices_to_uio (conf);
1389 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1390 devconf->x = conf->default_devconf.x ;
1393 pool_foreach (devconf, conf->dev_confs, ({
1395 /* default per-device config items */
1396 foreach_dpdk_device_config_item
1398 /* copy vlan_strip config from default device */
1399 if (devconf->vlan_strip_offload == 0 &&
1400 conf->default_devconf.vlan_strip_offload > 0)
1401 devconf->vlan_strip_offload =
1402 conf->default_devconf.vlan_strip_offload;
1404 /* copy tso config from default device */
1407 /* copy tso config from default device */
1410 /* add DPDK EAL whitelist/blacklist entry */
1411 if (num_whitelisted > 0 && devconf->is_blacklisted == 0)
1413 tmp = format (0, "-w%c", 0);
1414 vec_add1 (conf->eal_init_args, tmp);
1415 if (devconf->devargs)
1417 tmp = format (0, "%U,%s", format_vlib_pci_addr, &devconf->pci_addr, devconf->devargs, 0);
1421 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1423 vec_add1 (conf->eal_init_args, tmp);
1425 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0)
1427 tmp = format (0, "-b%c", 0);
1428 vec_add1 (conf->eal_init_args, tmp);
1429 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1430 vec_add1 (conf->eal_init_args, tmp);
1437 /* set master-lcore */
1438 tmp = format (0, "--master-lcore%c", 0);
1439 vec_add1 (conf->eal_init_args, tmp);
1440 tmp = format (0, "%u%c", tm->main_lcore, 0);
1441 vec_add1 (conf->eal_init_args, tmp);
1445 clib_warning ("socket-mem argument is deprecated");
1447 /* NULL terminate the "argv" vector, in case of stupidity */
1448 vec_add1 (conf->eal_init_args, 0);
1449 _vec_len (conf->eal_init_args) -= 1;
1451 /* Set up DPDK eal and packet mbuf pool early. */
1453 int log_fds[2] = { 0 };
1454 if (pipe (log_fds) == 0)
1456 if (fcntl (log_fds[1], F_SETFL, O_NONBLOCK) == 0)
1458 FILE *f = fdopen (log_fds[1], "a");
1459 if (f && rte_openlog_stream (f) == 0)
1461 clib_file_t t = { 0 };
1462 t.read_function = dpdk_log_read_ready;
1463 t.file_descriptor = log_fds[0];
1464 t.description = format (0, "DPDK logging pipe");
1465 clib_file_add (&file_main, &t);
1475 vm = vlib_get_main ();
1477 /* make copy of args as rte_eal_init tends to mess up with arg array */
1478 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1479 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1480 conf->eal_init_args[i]);
1482 vec_terminate_c_string (conf->eal_init_args_str);
1484 dpdk_log_warn ("EAL init args: %s", conf->eal_init_args_str);
1485 ret = rte_eal_init (vec_len (conf->eal_init_args),
1486 (char **) conf->eal_init_args);
1488 /* lazy umount hugepages */
1489 umount2 ((char *) huge_dir_path, MNT_DETACH);
1490 rmdir ((char *) huge_dir_path);
1491 vec_free (huge_dir_path);
1494 return clib_error_return (0, "rte_eal_init returned %d", ret);
1496 /* main thread 1st */
1497 if ((error = dpdk_buffer_pools_create (vm)))
1504 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1507 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1509 vnet_main_t *vnm = vnet_get_main ();
1510 struct rte_eth_link prev_link = xd->link;
1512 u8 hw_flags_chg = 0;
1514 /* only update link state for PMD interfaces */
1515 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
1518 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1519 clib_memset (&xd->link, 0, sizeof (xd->link));
1520 rte_eth_link_get_nowait (xd->port_id, &xd->link);
1522 if (LINK_STATE_ELOGS)
1524 vlib_main_t *vm = vlib_get_main ();
1525 ELOG_TYPE_DECLARE (e) =
1528 "update-link-state: sw_if_index %d, admin_up %d,"
1529 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1538 ed = ELOG_DATA (&vm->elog_main, e);
1539 ed->sw_if_index = xd->sw_if_index;
1540 ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1541 ed->old_link_state = (u8)
1542 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
1543 ed->new_link_state = (u8) xd->link.link_status;
1546 if ((xd->link.link_duplex != prev_link.link_duplex))
1549 switch (xd->link.link_duplex)
1551 case ETH_LINK_HALF_DUPLEX:
1552 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1554 case ETH_LINK_FULL_DUPLEX:
1555 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1561 if (xd->link.link_speed != prev_link.link_speed)
1562 vnet_hw_interface_set_link_speed (vnm, xd->hw_if_index,
1563 xd->link.link_speed * 1000);
1565 if (xd->link.link_status != prev_link.link_status)
1569 if (xd->link.link_status)
1570 hw_flags |= VNET_HW_INTERFACE_FLAG_LINK_UP;
1575 if (LINK_STATE_ELOGS)
1577 vlib_main_t *vm = vlib_get_main ();
1579 ELOG_TYPE_DECLARE (e) =
1582 "update-link-state: sw_if_index %d, new flags %d",.format_args
1590 ed = ELOG_DATA (&vm->elog_main, e);
1591 ed->sw_if_index = xd->sw_if_index;
1592 ed->flags = hw_flags;
1594 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, hw_flags);
1599 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1601 clib_error_t *error;
1602 dpdk_main_t *dm = &dpdk_main;
1604 vlib_thread_main_t *tm = vlib_get_thread_main ();
1606 error = dpdk_lib_init (dm);
1609 clib_error_report (error);
1611 tm->worker_thread_release = 1;
1613 f64 now = vlib_time_now (vm);
1614 vec_foreach (xd, dm->devices)
1616 dpdk_update_link_state (xd, now);
1622 * check each time through the loop in case intervals are changed
1624 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1625 dm->link_state_poll_interval : dm->stat_poll_interval;
1627 vlib_process_wait_for_event_or_clock (vm, min_wait);
1629 if (dm->admin_up_down_in_progress)
1630 /* skip the poll if an admin up down is in progress (on any interface) */
1633 vec_foreach (xd, dm->devices)
1635 f64 now = vlib_time_now (vm);
1636 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1637 dpdk_update_counters (xd, now);
1638 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1639 dpdk_update_link_state (xd, now);
1648 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1649 .function = dpdk_process,
1650 .type = VLIB_NODE_TYPE_PROCESS,
1651 .name = "dpdk-process",
1652 .process_log2_n_stack_bytes = 17,
1656 static clib_error_t *
1657 dpdk_init (vlib_main_t * vm)
1659 dpdk_main_t *dm = &dpdk_main;
1660 clib_error_t *error = 0;
1662 /* verify that structs are cacheline aligned */
1663 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1664 "Cache line marker must be 1st element in dpdk_device_t");
1665 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1666 CLIB_CACHE_LINE_BYTES,
1667 "Data in cache line 0 is bigger than cache line size");
1668 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1669 "Cache line marker must be 1st element in frame_queue_trace_t");
1670 STATIC_ASSERT (RTE_CACHE_LINE_SIZE == 1 << CLIB_LOG2_CACHE_LINE_BYTES,
1671 "DPDK RTE CACHE LINE SIZE does not match with 1<<CLIB_LOG2_CACHE_LINE_BYTES");
1673 dpdk_cli_reference ();
1676 dm->vnet_main = vnet_get_main ();
1677 dm->conf = &dpdk_config_main;
1679 dm->conf->nchannels = 4;
1680 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1681 vec_add1 (dm->conf->eal_init_args, (u8 *) "--in-memory");
1683 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1684 dm->buffer_flags_template = (VLIB_BUFFER_TOTAL_LENGTH_VALID |
1685 VLIB_BUFFER_EXT_HDR_VALID |
1686 VNET_BUFFER_F_L4_CHECKSUM_COMPUTED |
1687 VNET_BUFFER_F_L4_CHECKSUM_CORRECT);
1689 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1690 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1692 dm->log_default = vlib_log_register_class ("dpdk", 0);
1697 VLIB_INIT_FUNCTION (dpdk_init);
1700 * fd.io coding-style-patch-verification: ON
1703 * eval: (c-set-style "gnu")