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;
445 if (dm->conf->no_tx_checksum_offload == 0)
447 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
448 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
450 DPDK_DEVICE_FLAG_TX_OFFLOAD |
451 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
456 case VNET_DPDK_PMD_CXGBE:
457 case VNET_DPDK_PMD_MLX4:
458 case VNET_DPDK_PMD_MLX5:
459 case VNET_DPDK_PMD_QEDE:
460 case VNET_DPDK_PMD_BNXT:
461 xd->port_type = port_type_from_speed_capa (&dev_info);
465 case VNET_DPDK_PMD_IGBVF:
466 case VNET_DPDK_PMD_IXGBEVF:
467 case VNET_DPDK_PMD_I40EVF:
468 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
469 if (dm->conf->no_tx_checksum_offload == 0)
471 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
472 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
474 DPDK_DEVICE_FLAG_TX_OFFLOAD |
475 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
480 case VNET_DPDK_PMD_IAVF:
481 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
482 xd->supported_flow_actions = VNET_FLOW_ACTION_MARK |
483 VNET_FLOW_ACTION_REDIRECT_TO_NODE |
484 VNET_FLOW_ACTION_REDIRECT_TO_QUEUE |
485 VNET_FLOW_ACTION_BUFFER_ADVANCE |
486 VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP;
488 if (dm->conf->no_tx_checksum_offload == 0)
490 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
491 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
493 DPDK_DEVICE_FLAG_TX_OFFLOAD |
494 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
497 case VNET_DPDK_PMD_THUNDERX:
498 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
500 if (dm->conf->no_tx_checksum_offload == 0)
502 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
503 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
504 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD;
508 case VNET_DPDK_PMD_ENA:
509 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
510 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
513 case VNET_DPDK_PMD_DPAA2:
514 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
518 case VNET_DPDK_PMD_ENIC:
519 xd->port_type = port_type_from_link_speed (l.link_speed);
520 if (dm->conf->enable_tcp_udp_checksum)
521 dpdk_enable_l4_csum_offload (xd);
524 /* Intel Red Rock Canyon */
525 case VNET_DPDK_PMD_FM10K:
526 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
530 case VNET_DPDK_PMD_VIRTIO:
531 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
532 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
533 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
537 case VNET_DPDK_PMD_VMXNET3:
538 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
539 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
542 case VNET_DPDK_PMD_AF_PACKET:
543 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
544 xd->af_packet_instance_num = af_packet_instance_num++;
547 case VNET_DPDK_PMD_VIRTIO_USER:
548 xd->port_type = VNET_DPDK_PORT_TYPE_VIRTIO_USER;
551 case VNET_DPDK_PMD_VHOST_ETHER:
552 xd->port_type = VNET_DPDK_PORT_TYPE_VHOST_ETHER;
555 case VNET_DPDK_PMD_LIOVF_ETHER:
556 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
559 case VNET_DPDK_PMD_FAILSAFE:
560 xd->port_type = VNET_DPDK_PORT_TYPE_FAILSAFE;
561 xd->port_conf.intr_conf.lsc = 1;
564 case VNET_DPDK_PMD_NETVSC:
565 xd->port_type = port_type_from_link_speed (l.link_speed);
569 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
572 if (devconf->num_rx_desc)
573 xd->nb_rx_desc = devconf->num_rx_desc;
576 /* If num_rx_desc is not specified by VPP user, the current CPU is working
577 with 2M page and has no L3 cache, default num_rx_desc is changed to 512
578 from original 1024 to help reduce TLB misses.
580 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
581 && check_l3cache() == 0)
582 xd->nb_rx_desc = 512;
585 if (devconf->num_tx_desc)
586 xd->nb_tx_desc = devconf->num_tx_desc;
589 /* If num_tx_desc is not specified by VPP user, the current CPU is working
590 with 2M page and has no L3 cache, default num_tx_desc is changed to 512
591 from original 1024 to help reduce TLB misses.
593 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
594 && check_l3cache() == 0)
595 xd->nb_tx_desc = 512;
599 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
601 f64 now = vlib_time_now (vm);
603 rnd = (u32) (now * 1e6);
604 rnd = random_u32 (&rnd);
605 clib_memcpy (addr + 2, &rnd, sizeof (rnd));
610 rte_eth_macaddr_get (i, (void *) addr);
612 if (xd->tx_q_used < tm->n_vlib_mains)
613 dpdk_device_lock_init (xd);
616 xd->device_index = xd - dm->devices;
617 xd->per_interface_next_index = ~0;
619 /* assign interface to input thread */
623 error = ethernet_register_interface
624 (dm->vnet_main, dpdk_device_class.index, xd->device_index,
625 /* ethernet address */ addr,
626 &xd->hw_if_index, dpdk_flag_change);
631 * Ensure default mtu is not > the mtu read from the hardware.
632 * Otherwise rte_eth_dev_configure() will fail and the port will
634 * Calculate max_frame_size and mtu supported by NIC
636 if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
639 * This device does not support the platforms's max frame
640 * size. Use it's advertised mru instead.
642 max_rx_frame = dev_info.max_rx_pktlen;
643 mtu = dev_info.max_rx_pktlen - sizeof (ethernet_header_t);
647 /* VPP treats MTU and max_rx_pktlen both equal to
648 * ETHERNET_MAX_PACKET_BYTES, if dev_info.max_rx_pktlen >=
649 * ETHERNET_MAX_PACKET_BYTES + sizeof(ethernet_header_t)
651 if (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
652 sizeof (ethernet_header_t)))
654 mtu = ETHERNET_MAX_PACKET_BYTES;
655 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
658 * Some platforms do not account for Ethernet FCS (4 bytes) in
659 * MTU calculations. To interop with them increase mru but only
660 * if the device's settings can support it.
662 if (dpdk_port_crc_strip_enabled (xd) &&
663 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
664 sizeof (ethernet_header_t) +
672 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
673 mtu = ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
675 if (dpdk_port_crc_strip_enabled (xd) &&
676 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)))
683 if (xd->pmd == VNET_DPDK_PMD_FAILSAFE)
685 /* failsafe device numerables are reported with active device only,
686 * need to query the mtu for current device setup to overwrite
690 if (!rte_eth_dev_get_mtu (i, &dev_mtu))
693 max_rx_frame = mtu + sizeof (ethernet_header_t);
695 if (dpdk_port_crc_strip_enabled (xd))
702 /*Set port rxmode config */
703 xd->port_conf.rxmode.max_rx_pkt_len = max_rx_frame;
705 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->hw_if_index);
706 xd->sw_if_index = sw->sw_if_index;
707 vnet_hw_interface_set_input_node (dm->vnet_main, xd->hw_if_index,
708 dpdk_input_node.index);
710 if (devconf->workers)
714 clib_bitmap_foreach (i, devconf->workers, ({
715 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q++,
716 vdm->first_worker_thread_index + i);
720 for (q = 0; q < xd->rx_q_used; q++)
722 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q, /* any */
726 /*Get vnet hardware interface */
727 hi = vnet_get_hw_interface (dm->vnet_main, xd->hw_if_index);
729 /*Override default max_packet_bytes and max_supported_bytes set in
730 * ethernet_register_interface() above*/
733 hi->max_packet_bytes = mtu;
734 hi->max_supported_packet_bytes = max_rx_frame;
735 hi->numa_node = xd->cpu_socket;
738 if (dm->conf->no_tx_checksum_offload == 0)
739 if (xd->flags & DPDK_DEVICE_FLAG_TX_OFFLOAD && hi != NULL)
740 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD;
742 if (devconf->tso == DPDK_DEVICE_TSO_ON && hi != NULL)
744 /*tcp_udp checksum must be enabled*/
745 if ((dm->conf->enable_tcp_udp_checksum) &&
746 (hi->flags & VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD))
748 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO;
749 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_TSO |
750 DEV_TX_OFFLOAD_UDP_TSO;
753 clib_warning ("%s: TCP/UDP checksum offload must be enabled",
757 dpdk_device_setup (xd);
759 if (vec_len (xd->errors))
760 dpdk_log_err ("setup failed for device %U. Errors:\n %U",
761 format_dpdk_device_name, i,
762 format_dpdk_device_errors, xd);
765 * A note on Cisco VIC (PMD_ENIC) and VLAN:
767 * With Cisco VIC vNIC, every ingress packet is tagged. On a
768 * trunk vNIC (C series "standalone" server), packets on no VLAN
769 * are tagged with vlan 0. On an access vNIC (standalone or B
770 * series "blade" server), packets on the default/native VLAN
771 * are tagged with that vNIC's VLAN. VPP expects these packets
772 * to be untagged, and previously enabled VLAN strip on VIC by
773 * default. But it also broke vlan sub-interfaces.
775 * The VIC adapter has "untag default vlan" ingress VLAN rewrite
776 * mode, which removes tags from these packets. VPP now includes
777 * a local patch for the enic driver to use this untag mode, so
778 * enabling vlan stripping is no longer needed. In future, the
779 * driver + dpdk will have an API to set the mode after
780 * rte_eal_init. Then, this note and local patch will be
785 * VLAN stripping: default to VLAN strip disabled, unless specified
786 * otherwise in the startup config.
789 vlan_off = rte_eth_dev_get_vlan_offload (xd->port_id);
790 if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
792 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
793 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
794 dpdk_log_info ("VLAN strip enabled for interface\n");
796 dpdk_log_warn ("VLAN strip cannot be supported by interface\n");
797 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_VLAN_STRIP;
801 if (vlan_off & ETH_VLAN_STRIP_OFFLOAD)
803 vlan_off &= ~ETH_VLAN_STRIP_OFFLOAD;
804 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
805 dpdk_log_warn ("set VLAN offload failed\n");
807 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP;
811 hi->max_packet_bytes = xd->port_conf.rxmode.max_rx_pkt_len
812 - sizeof (ethernet_header_t);
814 dpdk_log_warn ("hi NULL");
816 if (dm->conf->no_multi_seg)
817 mtu = mtu > ETHER_MAX_LEN ? ETHER_MAX_LEN : mtu;
819 rte_eth_dev_set_mtu (xd->port_id, mtu);
827 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
829 vlib_main_t *vm = vlib_get_main ();
832 int num_whitelisted = vec_len (conf->dev_confs);
833 vlib_pci_device_info_t *d = 0;
834 vlib_pci_addr_t *addr = 0, *addrs;
837 addrs = vlib_pci_get_all_dev_addrs ();
839 vec_foreach (addr, addrs)
841 dpdk_device_config_t * devconf = 0;
842 vec_reset_length (pci_addr);
843 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, addr, 0);
846 vlib_pci_free_device_info (d);
849 d = vlib_pci_get_device_info (vm, addr, &error);
852 clib_error_report (error);
856 if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
861 uword * p = hash_get (conf->device_config_index_by_pci_addr, addr->as_u32);
869 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
872 /* Enforce Device blacklist by vendor and device */
873 for (i = 0; i < vec_len (conf->blacklist_by_pci_vendor_and_device); i++)
876 vendor = (u16)(conf->blacklist_by_pci_vendor_and_device[i] >> 16);
877 device = (u16)(conf->blacklist_by_pci_vendor_and_device[i] & 0xFFFF);
878 if (d->vendor_id == vendor && d->device_id == device)
881 * Expected case: device isn't whitelisted,
886 /* Device is blacklisted */
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 else /* explicitly whitelisted, ignore the device blacklist */
900 if (d->vendor_id == 0x1af4 &&
901 (d->device_id == VIRTIO_PCI_LEGACY_DEVICEID_NET ||
902 d->device_id == VIRTIO_PCI_MODERN_DEVICEID_NET))
905 else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
908 * For vmxnet3 PCI, unless it is explicitly specified in the whitelist,
909 * the default is to put it in the blacklist.
913 pool_get (conf->dev_confs, devconf);
914 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
915 devconf - conf->dev_confs);
916 devconf->pci_addr.as_u32 = addr->as_u32;
917 devconf->is_blacklisted = 1;
920 /* all Intel network devices */
921 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
923 /* all Intel QAT devices VFs */
924 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
925 (d->device_id == 0x0443 || d->device_id == 0x18a1 || d->device_id == 0x19e3 ||
926 d->device_id == 0x37c9 || d->device_id == 0x6f55))
929 else if (d->vendor_id == 0x1137 &&
930 (d->device_id == 0x0043 || d->device_id == 0x0071))
933 else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
935 /* Amazon Elastic Network Adapter */
936 else if (d->vendor_id == 0x1d0f && d->device_id >= 0xec20 && d->device_id <= 0xec21)
938 /* Cavium Network Adapter */
939 else if (d->vendor_id == 0x177d && d->device_id == 0x9712)
941 /* Cavium FastlinQ QL41000 Series */
942 else if (d->vendor_id == 0x1077 && d->device_id >= 0x8070 && d->device_id <= 0x8090)
945 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1003 && d->device_id <= 0x1004)
950 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1013 && d->device_id <= 0x101a)
954 /* Broadcom NetXtreme S, and E series only */
955 else if (d->vendor_id == 0x14e4 &&
956 ((d->device_id >= 0x16c0 &&
957 d->device_id != 0x16c6 && d->device_id != 0x16c7 &&
958 d->device_id != 0x16dd && d->device_id != 0x16f7 &&
959 d->device_id != 0x16fd && d->device_id != 0x16fe &&
960 d->device_id != 0x170d && d->device_id != 0x170c &&
961 d->device_id != 0x170e && d->device_id != 0x1712 &&
962 d->device_id != 0x1713) ||
963 (d->device_id == 0x1604 || d->device_id == 0x1605 ||
964 d->device_id == 0x1614 || d->device_id == 0x1606 ||
965 d->device_id == 0x1609 || d->device_id == 0x1614)))
969 dpdk_log_warn ("Unsupported PCI device 0x%04x:0x%04x found "
970 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
975 error = vlib_pci_bind_to_uio (vm, addr, (char *) conf->uio_driver_name);
981 pool_get (conf->dev_confs, devconf);
982 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
983 devconf - conf->dev_confs);
984 devconf->pci_addr.as_u32 = addr->as_u32;
986 devconf->is_blacklisted = 1;
987 clib_error_report (error);
992 vlib_pci_free_device_info (d);
996 dpdk_bind_vmbus_devices_to_uio (dpdk_config_main_t * conf)
999 vlib_vmbus_addr_t *addrs, *addr = 0;
1001 addrs = vlib_vmbus_get_all_dev_addrs ();
1004 vec_foreach (addr, addrs)
1006 error = vlib_vmbus_bind_to_uio (addr);
1010 clib_error_report (error);
1016 static clib_error_t *
1017 dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr,
1018 unformat_input_t * input, u8 is_default)
1020 clib_error_t *error = 0;
1022 dpdk_device_config_t *devconf;
1023 unformat_input_t sub_input;
1027 devconf = &conf->default_devconf;
1031 p = hash_get (conf->device_config_index_by_pci_addr, pci_addr.as_u32);
1035 pool_get (conf->dev_confs, devconf);
1036 hash_set (conf->device_config_index_by_pci_addr, pci_addr.as_u32,
1037 devconf - conf->dev_confs);
1040 return clib_error_return (0,
1041 "duplicate configuration for PCI address %U",
1042 format_vlib_pci_addr, &pci_addr);
1045 devconf->pci_addr.as_u32 = pci_addr.as_u32;
1046 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
1051 unformat_skip_white_space (input);
1052 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1054 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
1056 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
1058 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
1060 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
1062 else if (unformat (input, "name %s", &devconf->name))
1064 else if (unformat (input, "workers %U", unformat_bitmap_list,
1069 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
1071 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
1075 else if (unformat (input, "vlan-strip-offload off"))
1076 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
1077 else if (unformat (input, "vlan-strip-offload on"))
1078 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
1079 else if (unformat (input, "tso on"))
1081 devconf->tso = DPDK_DEVICE_TSO_ON;
1083 else if (unformat (input, "tso off"))
1085 devconf->tso = DPDK_DEVICE_TSO_OFF;
1087 else if (unformat (input, "devargs %s", &devconf->devargs))
1091 error = clib_error_return (0, "unknown input `%U'",
1092 format_unformat_error, input);
1100 if (devconf->workers && devconf->num_rx_queues == 0)
1101 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
1102 else if (devconf->workers &&
1103 clib_bitmap_count_set_bits (devconf->workers) !=
1104 devconf->num_rx_queues)
1106 clib_error_return (0,
1107 "%U: number of worker threads must be "
1108 "equal to number of rx queues", format_vlib_pci_addr,
1114 static clib_error_t *
1115 dpdk_log_read_ready (clib_file_t * uf)
1117 unformat_input_t input;
1124 uword len = vec_len (s);
1125 vec_resize (s, len + n_try);
1127 n = read (uf->file_descriptor, s + len, n_try);
1128 if (n < 0 && errno != EAGAIN)
1129 return clib_error_return_unix (0, "read");
1130 _vec_len (s) = len + (n < 0 ? 0 : n);
1133 unformat_init_vector (&input, s);
1135 while (unformat_user (&input, unformat_line, &line))
1137 dpdk_log_notice ("%v", line);
1141 unformat_free (&input);
1145 static clib_error_t *
1146 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
1148 clib_error_t *error = 0;
1149 dpdk_config_main_t *conf = &dpdk_config_main;
1150 vlib_thread_main_t *tm = vlib_get_thread_main ();
1151 dpdk_device_config_t *devconf;
1152 vlib_pci_addr_t pci_addr;
1153 unformat_input_t sub_input;
1154 uword default_hugepage_sz, x;
1157 int num_whitelisted = 0;
1162 u8 *huge_dir_path = 0;
1166 format (0, "%s/hugepages%c", vlib_unix_get_runtime_dir (), 0);
1168 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
1170 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1172 /* Prime the pump */
1173 if (unformat (input, "no-hugetlb"))
1175 vec_add1 (conf->eal_init_args, (u8 *) "--no-huge");
1178 else if (unformat (input, "enable-tcp-udp-checksum"))
1179 conf->enable_tcp_udp_checksum = 1;
1181 else if (unformat (input, "no-tx-checksum-offload"))
1182 conf->no_tx_checksum_offload = 1;
1184 else if (unformat (input, "decimal-interface-names"))
1185 conf->interface_name_format_decimal = 1;
1187 else if (unformat (input, "no-multi-seg"))
1188 conf->no_multi_seg = 1;
1190 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
1194 dpdk_device_config (conf, (vlib_pci_addr_t) (u32) ~ 1, &sub_input,
1202 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
1203 unformat_vlib_cli_sub_input, &sub_input))
1205 error = dpdk_device_config (conf, pci_addr, &sub_input, 0);
1212 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
1214 error = dpdk_device_config (conf, pci_addr, 0, 0);
1221 else if (unformat (input, "num-mem-channels %d", &conf->nchannels))
1222 conf->nchannels_set_manually = 0;
1223 else if (unformat (input, "num-crypto-mbufs %d",
1224 &conf->num_crypto_mbufs))
1226 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
1228 else if (unformat (input, "socket-mem %s", &socket_mem))
1230 else if (unformat (input, "no-pci"))
1233 tmp = format (0, "--no-pci%c", 0);
1234 vec_add1 (conf->eal_init_args, tmp);
1236 else if (unformat (input, "blacklist %x:%x", &vendor, &device))
1238 u32 blacklist_entry;
1239 if (vendor > 0xFFFF)
1240 return clib_error_return (0, "blacklist PCI vendor out of range");
1241 if (device > 0xFFFF)
1242 return clib_error_return (0, "blacklist PCI device out of range");
1243 blacklist_entry = (vendor << 16) | (device & 0xffff);
1244 vec_add1 (conf->blacklist_by_pci_vendor_and_device,
1247 else if (unformat (input, "no-vmbus"))
1250 tmp = format (0, "--no-vmbus%c", 0);
1251 vec_add1 (conf->eal_init_args, tmp);
1255 else if (unformat(input, #a)) \
1257 tmp = format (0, "--%s%c", #a, 0); \
1258 vec_add1 (conf->eal_init_args, tmp); \
1260 foreach_eal_double_hyphen_predicate_arg
1263 else if (unformat(input, #a " %s", &s)) \
1265 if (!strncmp(#a, "file-prefix", 11)) \
1267 tmp = format (0, "--%s%c", #a, 0); \
1268 vec_add1 (conf->eal_init_args, tmp); \
1270 if (!strncmp(#a, "vdev", 4)) \
1271 if (strstr((char*)s, "af_packet")) \
1272 clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
1273 vec_add1 (conf->eal_init_args, s); \
1275 foreach_eal_double_hyphen_arg
1278 else if (unformat(input, #a " %s", &s)) \
1280 tmp = format (0, "-%s%c", #b, 0); \
1281 vec_add1 (conf->eal_init_args, tmp); \
1283 vec_add1 (conf->eal_init_args, s); \
1285 foreach_eal_single_hyphen_arg
1288 else if (unformat(input, #a " %s", &s)) \
1290 tmp = format (0, "-%s%c", #b, 0); \
1291 vec_add1 (conf->eal_init_args, tmp); \
1293 vec_add1 (conf->eal_init_args, s); \
1294 conf->a##_set_manually = 1; \
1296 foreach_eal_single_hyphen_mandatory_arg
1298 else if (unformat (input, "default"))
1301 else if (unformat_skip_white_space (input))
1305 error = clib_error_return (0, "unknown input `%U'",
1306 format_unformat_error, input);
1311 if (!conf->uio_driver_name)
1312 conf->uio_driver_name = format (0, "auto%c", 0);
1314 default_hugepage_sz = clib_mem_get_default_hugepage_size ();
1317 clib_bitmap_foreach (x, tm->cpu_socket_bitmap, (
1321 /* preallocate at least 16MB of hugepages per socket,
1322 if more is needed it is up to consumer to preallocate more */
1323 n_pages = round_pow2 ((uword) 16 << 20, default_hugepage_sz);
1324 n_pages /= default_hugepage_sz;
1326 if ((e = clib_sysfs_prealloc_hugepages(x, 0, n_pages)))
1327 clib_error_report (e);
1333 tmp = format (0, "--file-prefix%c", 0);
1334 vec_add1 (conf->eal_init_args, tmp);
1335 tmp = format (0, "vpp%c", 0);
1336 vec_add1 (conf->eal_init_args, tmp);
1342 /* I'll bet that -c and -n must be the first and second args... */
1343 if (!conf->coremask_set_manually)
1345 vlib_thread_registration_t *tr;
1346 uword *coremask = 0;
1349 /* main thread core */
1350 coremask = clib_bitmap_set (coremask, tm->main_lcore, 1);
1352 for (i = 0; i < vec_len (tm->registrations); i++)
1354 tr = tm->registrations[i];
1355 coremask = clib_bitmap_or (coremask, tr->coremask);
1358 vec_insert (conf->eal_init_args, 2, 1);
1359 conf->eal_init_args[1] = (u8 *) "-c";
1360 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1361 conf->eal_init_args[2] = tmp;
1362 clib_bitmap_free (coremask);
1365 if (!conf->nchannels_set_manually)
1367 vec_insert (conf->eal_init_args, 2, 3);
1368 conf->eal_init_args[3] = (u8 *) "-n";
1369 tmp = format (0, "%d", conf->nchannels);
1370 vec_terminate_c_string (tmp);
1371 conf->eal_init_args[4] = tmp;
1374 if (no_pci == 0 && geteuid () == 0)
1375 dpdk_bind_devices_to_uio (conf);
1377 if (no_vmbus == 0 && geteuid () == 0)
1378 dpdk_bind_vmbus_devices_to_uio (conf);
1381 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1382 devconf->x = conf->default_devconf.x ;
1385 pool_foreach (devconf, conf->dev_confs, ({
1387 /* default per-device config items */
1388 foreach_dpdk_device_config_item
1390 /* copy vlan_strip config from default device */
1391 if (devconf->vlan_strip_offload == 0 &&
1392 conf->default_devconf.vlan_strip_offload > 0)
1393 devconf->vlan_strip_offload =
1394 conf->default_devconf.vlan_strip_offload;
1396 /* copy tso config from default device */
1399 /* copy tso config from default device */
1402 /* add DPDK EAL whitelist/blacklist entry */
1403 if (num_whitelisted > 0 && devconf->is_blacklisted == 0)
1405 tmp = format (0, "-w%c", 0);
1406 vec_add1 (conf->eal_init_args, tmp);
1407 if (devconf->devargs)
1409 tmp = format (0, "%U,%s", format_vlib_pci_addr, &devconf->pci_addr, devconf->devargs, 0);
1413 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1415 vec_add1 (conf->eal_init_args, tmp);
1417 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0)
1419 tmp = format (0, "-b%c", 0);
1420 vec_add1 (conf->eal_init_args, tmp);
1421 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1422 vec_add1 (conf->eal_init_args, tmp);
1429 /* set master-lcore */
1430 tmp = format (0, "--master-lcore%c", 0);
1431 vec_add1 (conf->eal_init_args, tmp);
1432 tmp = format (0, "%u%c", tm->main_lcore, 0);
1433 vec_add1 (conf->eal_init_args, tmp);
1437 clib_warning ("socket-mem argument is deprecated");
1439 /* NULL terminate the "argv" vector, in case of stupidity */
1440 vec_add1 (conf->eal_init_args, 0);
1441 _vec_len (conf->eal_init_args) -= 1;
1443 /* Set up DPDK eal and packet mbuf pool early. */
1445 int log_fds[2] = { 0 };
1446 if (pipe (log_fds) == 0)
1448 if (fcntl (log_fds[1], F_SETFL, O_NONBLOCK) == 0)
1450 FILE *f = fdopen (log_fds[1], "a");
1451 if (f && rte_openlog_stream (f) == 0)
1453 clib_file_t t = { 0 };
1454 t.read_function = dpdk_log_read_ready;
1455 t.file_descriptor = log_fds[0];
1456 t.description = format (0, "DPDK logging pipe");
1457 clib_file_add (&file_main, &t);
1467 vm = vlib_get_main ();
1469 /* make copy of args as rte_eal_init tends to mess up with arg array */
1470 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1471 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1472 conf->eal_init_args[i]);
1474 vec_terminate_c_string (conf->eal_init_args_str);
1476 dpdk_log_warn ("EAL init args: %s", conf->eal_init_args_str);
1477 ret = rte_eal_init (vec_len (conf->eal_init_args),
1478 (char **) conf->eal_init_args);
1480 /* lazy umount hugepages */
1481 umount2 ((char *) huge_dir_path, MNT_DETACH);
1482 rmdir ((char *) huge_dir_path);
1483 vec_free (huge_dir_path);
1486 return clib_error_return (0, "rte_eal_init returned %d", ret);
1488 /* main thread 1st */
1489 if ((error = dpdk_buffer_pools_create (vm)))
1496 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1499 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1501 vnet_main_t *vnm = vnet_get_main ();
1502 struct rte_eth_link prev_link = xd->link;
1504 u8 hw_flags_chg = 0;
1506 /* only update link state for PMD interfaces */
1507 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
1510 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1511 clib_memset (&xd->link, 0, sizeof (xd->link));
1512 rte_eth_link_get_nowait (xd->port_id, &xd->link);
1514 if (LINK_STATE_ELOGS)
1516 vlib_main_t *vm = vlib_get_main ();
1517 ELOG_TYPE_DECLARE (e) =
1520 "update-link-state: sw_if_index %d, admin_up %d,"
1521 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1530 ed = ELOG_DATA (&vm->elog_main, e);
1531 ed->sw_if_index = xd->sw_if_index;
1532 ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1533 ed->old_link_state = (u8)
1534 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
1535 ed->new_link_state = (u8) xd->link.link_status;
1538 if ((xd->link.link_duplex != prev_link.link_duplex))
1541 switch (xd->link.link_duplex)
1543 case ETH_LINK_HALF_DUPLEX:
1544 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1546 case ETH_LINK_FULL_DUPLEX:
1547 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1553 if (xd->link.link_speed != prev_link.link_speed)
1554 vnet_hw_interface_set_link_speed (vnm, xd->hw_if_index,
1555 xd->link.link_speed * 1000);
1557 if (xd->link.link_status != prev_link.link_status)
1561 if (xd->link.link_status)
1562 hw_flags |= VNET_HW_INTERFACE_FLAG_LINK_UP;
1567 if (LINK_STATE_ELOGS)
1569 vlib_main_t *vm = vlib_get_main ();
1571 ELOG_TYPE_DECLARE (e) =
1574 "update-link-state: sw_if_index %d, new flags %d",.format_args
1582 ed = ELOG_DATA (&vm->elog_main, e);
1583 ed->sw_if_index = xd->sw_if_index;
1584 ed->flags = hw_flags;
1586 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, hw_flags);
1591 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1593 clib_error_t *error;
1594 dpdk_main_t *dm = &dpdk_main;
1596 vlib_thread_main_t *tm = vlib_get_thread_main ();
1598 error = dpdk_lib_init (dm);
1601 clib_error_report (error);
1603 tm->worker_thread_release = 1;
1605 f64 now = vlib_time_now (vm);
1606 vec_foreach (xd, dm->devices)
1608 dpdk_update_link_state (xd, now);
1614 * check each time through the loop in case intervals are changed
1616 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1617 dm->link_state_poll_interval : dm->stat_poll_interval;
1619 vlib_process_wait_for_event_or_clock (vm, min_wait);
1621 if (dm->admin_up_down_in_progress)
1622 /* skip the poll if an admin up down is in progress (on any interface) */
1625 vec_foreach (xd, dm->devices)
1627 f64 now = vlib_time_now (vm);
1628 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1629 dpdk_update_counters (xd, now);
1630 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1631 dpdk_update_link_state (xd, now);
1640 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1641 .function = dpdk_process,
1642 .type = VLIB_NODE_TYPE_PROCESS,
1643 .name = "dpdk-process",
1644 .process_log2_n_stack_bytes = 17,
1648 static clib_error_t *
1649 dpdk_init (vlib_main_t * vm)
1651 dpdk_main_t *dm = &dpdk_main;
1652 clib_error_t *error = 0;
1654 /* verify that structs are cacheline aligned */
1655 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1656 "Cache line marker must be 1st element in dpdk_device_t");
1657 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1658 CLIB_CACHE_LINE_BYTES,
1659 "Data in cache line 0 is bigger than cache line size");
1660 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1661 "Cache line marker must be 1st element in frame_queue_trace_t");
1662 STATIC_ASSERT (RTE_CACHE_LINE_SIZE == 1 << CLIB_LOG2_CACHE_LINE_BYTES,
1663 "DPDK RTE CACHE LINE SIZE does not match with 1<<CLIB_LOG2_CACHE_LINE_BYTES");
1665 dpdk_cli_reference ();
1668 dm->vnet_main = vnet_get_main ();
1669 dm->conf = &dpdk_config_main;
1671 dm->conf->nchannels = 4;
1672 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1673 vec_add1 (dm->conf->eal_init_args, (u8 *) "--in-memory");
1675 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1676 dm->buffer_flags_template = (VLIB_BUFFER_TOTAL_LENGTH_VALID |
1677 VLIB_BUFFER_EXT_HDR_VALID |
1678 VNET_BUFFER_F_L4_CHECKSUM_COMPUTED |
1679 VNET_BUFFER_F_L4_CHECKSUM_CORRECT);
1681 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1682 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1684 dm->log_default = vlib_log_register_class ("dpdk", 0);
1689 VLIB_INIT_FUNCTION (dpdk_init);
1692 * fd.io coding-style-patch-verification: ON
1695 * eval: (c-set-style "gnu")