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 <dpdk/cryptodev/cryptodev.h>
28 #include <vlib/pci/pci.h>
29 #include <vlib/vmbus/vmbus.h>
37 #include <sys/mount.h>
42 #include <dpdk/device/dpdk_priv.h>
44 #define ETHER_MAX_LEN 1518 /**< Maximum frame len, including CRC. */
46 dpdk_main_t dpdk_main;
47 dpdk_config_main_t dpdk_config_main;
49 #define LINK_STATE_ELOGS 0
51 /* Port configuration, mildly modified Intel app values */
53 static dpdk_port_type_t
54 port_type_from_speed_capa (struct rte_eth_dev_info *dev_info)
57 if (dev_info->speed_capa & ETH_LINK_SPEED_100G)
58 return VNET_DPDK_PORT_TYPE_ETH_100G;
59 else if (dev_info->speed_capa & ETH_LINK_SPEED_56G)
60 return VNET_DPDK_PORT_TYPE_ETH_56G;
61 else if (dev_info->speed_capa & ETH_LINK_SPEED_50G)
62 return VNET_DPDK_PORT_TYPE_ETH_50G;
63 else if (dev_info->speed_capa & ETH_LINK_SPEED_40G)
64 return VNET_DPDK_PORT_TYPE_ETH_40G;
65 else if (dev_info->speed_capa & ETH_LINK_SPEED_25G)
66 return VNET_DPDK_PORT_TYPE_ETH_25G;
67 else if (dev_info->speed_capa & ETH_LINK_SPEED_20G)
68 return VNET_DPDK_PORT_TYPE_ETH_20G;
69 else if (dev_info->speed_capa & ETH_LINK_SPEED_10G)
70 return VNET_DPDK_PORT_TYPE_ETH_10G;
71 else if (dev_info->speed_capa & ETH_LINK_SPEED_5G)
72 return VNET_DPDK_PORT_TYPE_ETH_5G;
73 else if (dev_info->speed_capa & ETH_LINK_SPEED_2_5G)
74 return VNET_DPDK_PORT_TYPE_ETH_2_5G;
75 else if (dev_info->speed_capa & ETH_LINK_SPEED_1G)
76 return VNET_DPDK_PORT_TYPE_ETH_1G;
78 return VNET_DPDK_PORT_TYPE_UNKNOWN;
81 static dpdk_port_type_t
82 port_type_from_link_speed (u32 link_speed)
86 case ETH_SPEED_NUM_1G:
87 return VNET_DPDK_PORT_TYPE_ETH_1G;
88 case ETH_SPEED_NUM_2_5G:
89 return VNET_DPDK_PORT_TYPE_ETH_2_5G;
90 case ETH_SPEED_NUM_5G:
91 return VNET_DPDK_PORT_TYPE_ETH_5G;
92 case ETH_SPEED_NUM_10G:
93 return VNET_DPDK_PORT_TYPE_ETH_10G;
94 case ETH_SPEED_NUM_20G:
95 return VNET_DPDK_PORT_TYPE_ETH_20G;
96 case ETH_SPEED_NUM_25G:
97 return VNET_DPDK_PORT_TYPE_ETH_25G;
98 case ETH_SPEED_NUM_40G:
99 return VNET_DPDK_PORT_TYPE_ETH_40G;
100 case ETH_SPEED_NUM_50G:
101 return VNET_DPDK_PORT_TYPE_ETH_50G;
102 case ETH_SPEED_NUM_56G:
103 return VNET_DPDK_PORT_TYPE_ETH_56G;
104 case ETH_SPEED_NUM_100G:
105 return VNET_DPDK_PORT_TYPE_ETH_100G;
107 return VNET_DPDK_PORT_TYPE_UNKNOWN;
112 dpdk_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hi, u32 flags)
114 dpdk_main_t *dm = &dpdk_main;
115 dpdk_device_t *xd = vec_elt_at_index (dm->devices, hi->dev_instance);
116 u32 old = (xd->flags & DPDK_DEVICE_FLAG_PROMISC) != 0;
120 case ETHERNET_INTERFACE_FLAG_DEFAULT_L3:
121 /* set to L3/non-promisc mode */
122 xd->flags &= ~DPDK_DEVICE_FLAG_PROMISC;
124 case ETHERNET_INTERFACE_FLAG_ACCEPT_ALL:
125 xd->flags |= DPDK_DEVICE_FLAG_PROMISC;
127 case ETHERNET_INTERFACE_FLAG_MTU:
128 xd->port_conf.rxmode.max_rx_pkt_len = hi->max_packet_bytes;
129 dpdk_device_setup (xd);
135 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
137 if (xd->flags & DPDK_DEVICE_FLAG_PROMISC)
138 rte_eth_promiscuous_enable (xd->port_id);
140 rte_eth_promiscuous_disable (xd->port_id);
147 dpdk_port_crc_strip_enabled (dpdk_device_t * xd)
149 return !(xd->port_conf.rxmode.offloads & DEV_RX_OFFLOAD_KEEP_CRC);
152 /* The function check_l3cache helps check if Level 3 cache exists or not on current CPUs
153 return value 1: exist.
154 return value 0: not exist.
162 const char *sys_cache_dir = "/sys/devices/system/cpu/cpu0/cache";
163 DIR *dir_cache = opendir (sys_cache_dir);
165 if (dir_cache == NULL)
168 while ((dp = readdir (dir_cache)) != NULL)
170 if (dp->d_type == DT_DIR)
173 int level_cache = -1;
175 p = format (p, "%s/%s/%s%c", sys_cache_dir, dp->d_name, "level", 0);
176 if ((err = clib_sysfs_read ((char *) p, "%d", &level_cache)))
177 clib_error_free (err);
179 if (level_cache == 3)
181 closedir (dir_cache);
187 if (dir_cache != NULL)
188 closedir (dir_cache);
194 dpdk_enable_l4_csum_offload (dpdk_device_t * xd)
196 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
197 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
198 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD |
199 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
202 static clib_error_t *
203 dpdk_lib_init (dpdk_main_t * dm)
206 u32 mtu, max_rx_frame;
209 vlib_main_t *vm = vlib_get_main ();
210 vlib_thread_main_t *tm = vlib_get_thread_main ();
211 vnet_device_main_t *vdm = &vnet_device_main;
212 vnet_sw_interface_t *sw;
213 vnet_hw_interface_t *hi;
215 vlib_pci_addr_t last_pci_addr;
216 u32 last_pci_addr_port = 0;
217 u8 af_packet_instance_num = 0;
218 last_pci_addr.as_u32 = ~0;
220 nports = rte_eth_dev_count_avail ();
224 dpdk_log_notice ("DPDK drivers found no Ethernet devices...");
228 dpdk_log_notice ("DPDK drivers found %d ports...", nports);
230 if (dm->conf->enable_tcp_udp_checksum)
231 dm->buffer_flags_template &= ~(VNET_BUFFER_F_L4_CHECKSUM_CORRECT
232 | VNET_BUFFER_F_L4_CHECKSUM_COMPUTED);
234 /* vlib_buffer_t template */
235 vec_validate_aligned (dm->per_thread_data, tm->n_vlib_mains - 1,
236 CLIB_CACHE_LINE_BYTES);
237 for (i = 0; i < tm->n_vlib_mains; i++)
239 dpdk_per_thread_data_t *ptd = vec_elt_at_index (dm->per_thread_data, i);
240 clib_memset (&ptd->buffer_template, 0, sizeof (vlib_buffer_t));
241 ptd->buffer_template.flags = dm->buffer_flags_template;
242 vnet_buffer (&ptd->buffer_template)->sw_if_index[VLIB_TX] = (u32) ~ 0;
246 RTE_ETH_FOREACH_DEV(i)
250 struct rte_eth_dev_info dev_info;
251 struct rte_pci_device *pci_dev;
252 dpdk_portid_t next_port_id;
253 dpdk_device_config_t *devconf = 0;
254 vlib_pci_addr_t pci_addr;
257 if (!rte_eth_dev_is_valid_port(i))
260 rte_eth_dev_info_get (i, &dev_info);
262 if (dev_info.device == 0)
264 dpdk_log_notice ("DPDK bug: missing device info. Skipping %s device",
265 dev_info.driver_name);
269 pci_dev = dpdk_get_pci_device (&dev_info);
273 pci_addr.domain = pci_dev->addr.domain;
274 pci_addr.bus = pci_dev->addr.bus;
275 pci_addr.slot = pci_dev->addr.devid;
276 pci_addr.function = pci_dev->addr.function;
277 p = hash_get (dm->conf->device_config_index_by_pci_addr,
282 /* Create vnet interface */
283 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
284 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
285 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
286 xd->cpu_socket = (i8) rte_eth_dev_socket_id (i);
290 devconf = pool_elt_at_index (dm->conf->dev_confs, p[0]);
291 xd->name = devconf->name;
294 devconf = &dm->conf->default_devconf;
296 /* Handle representor devices that share the same PCI ID */
297 if (dev_info.switch_info.domain_id != RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID)
299 if (dev_info.switch_info.port_id != (uint16_t)-1)
300 xd->interface_name_suffix = format (0, "%d", dev_info.switch_info.port_id);
302 /* Handle interface naming for devices with multiple ports sharing same PCI ID */
304 ((next_port_id = rte_eth_find_next (i + 1)) != RTE_MAX_ETHPORTS))
306 struct rte_eth_dev_info di = { 0 };
307 struct rte_pci_device *next_pci_dev;
308 rte_eth_dev_info_get (next_port_id, &di);
309 next_pci_dev = di.device ? RTE_DEV_TO_PCI (di.device) : 0;
311 pci_addr.as_u32 != last_pci_addr.as_u32 &&
312 memcmp (&pci_dev->addr, &next_pci_dev->addr,
313 sizeof (struct rte_pci_addr)) == 0)
315 xd->interface_name_suffix = format (0, "0");
316 last_pci_addr.as_u32 = pci_addr.as_u32;
317 last_pci_addr_port = i;
319 else if (pci_addr.as_u32 == last_pci_addr.as_u32)
321 xd->interface_name_suffix =
322 format (0, "%u", i - last_pci_addr_port);
326 last_pci_addr.as_u32 = ~0;
330 last_pci_addr.as_u32 = ~0;
332 clib_memcpy (&xd->tx_conf, &dev_info.default_txconf,
333 sizeof (struct rte_eth_txconf));
335 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_IPV4_CKSUM)
337 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_IPV4_CKSUM;
338 xd->flags |= DPDK_DEVICE_FLAG_RX_IP4_CKSUM;
341 if (dm->conf->enable_tcp_udp_checksum)
343 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_UDP_CKSUM)
344 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_UDP_CKSUM;
345 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_TCP_CKSUM)
346 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_TCP_CKSUM;
349 if (dm->conf->no_multi_seg)
351 xd->port_conf.txmode.offloads &= ~DEV_TX_OFFLOAD_MULTI_SEGS;
352 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME;
353 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
357 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
358 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
359 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_SCATTER;
360 xd->flags |= DPDK_DEVICE_FLAG_MAYBE_MULTISEG;
363 xd->tx_q_used = clib_min (dev_info.max_tx_queues, tm->n_vlib_mains);
365 if (devconf->num_tx_queues > 0
366 && devconf->num_tx_queues < xd->tx_q_used)
367 xd->tx_q_used = clib_min (xd->tx_q_used, devconf->num_tx_queues);
369 if (devconf->num_rx_queues > 1
370 && dev_info.max_rx_queues >= devconf->num_rx_queues)
372 xd->rx_q_used = devconf->num_rx_queues;
373 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
374 if (devconf->rss_fn == 0)
375 xd->port_conf.rx_adv_conf.rss_conf.rss_hf =
376 ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
379 u64 unsupported_bits;
380 xd->port_conf.rx_adv_conf.rss_conf.rss_hf = devconf->rss_fn;
381 unsupported_bits = xd->port_conf.rx_adv_conf.rss_conf.rss_hf;
382 unsupported_bits &= ~dev_info.flow_type_rss_offloads;
383 if (unsupported_bits)
384 dpdk_log_warn ("Unsupported RSS hash functions: %U",
385 format_dpdk_rss_hf_name, unsupported_bits);
387 xd->port_conf.rx_adv_conf.rss_conf.rss_hf &=
388 dev_info.flow_type_rss_offloads;
393 xd->flags |= DPDK_DEVICE_FLAG_PMD;
395 /* workaround for drivers not setting driver_name */
396 if ((!dev_info.driver_name) && (pci_dev))
397 dev_info.driver_name = pci_dev->driver->driver.name;
399 ASSERT (dev_info.driver_name);
405 #define _(s,f) else if (dev_info.driver_name && \
406 !strcmp(dev_info.driver_name, s)) \
407 xd->pmd = VNET_DPDK_PMD_##f;
413 xd->pmd = VNET_DPDK_PMD_UNKNOWN;
415 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
416 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
417 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
421 /* Drivers with valid speed_capa set */
422 case VNET_DPDK_PMD_E1000EM:
423 case VNET_DPDK_PMD_IGB:
424 case VNET_DPDK_PMD_IXGBE:
425 case VNET_DPDK_PMD_I40E:
426 case VNET_DPDK_PMD_ICE:
427 xd->port_type = port_type_from_speed_capa (&dev_info);
428 xd->supported_flow_actions = VNET_FLOW_ACTION_MARK |
429 VNET_FLOW_ACTION_REDIRECT_TO_NODE |
430 VNET_FLOW_ACTION_REDIRECT_TO_QUEUE |
431 VNET_FLOW_ACTION_BUFFER_ADVANCE |
432 VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP |
433 VNET_FLOW_ACTION_RSS;
435 if (dm->conf->no_tx_checksum_offload == 0)
437 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
438 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
440 DPDK_DEVICE_FLAG_TX_OFFLOAD |
441 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
446 case VNET_DPDK_PMD_CXGBE:
447 case VNET_DPDK_PMD_MLX4:
448 case VNET_DPDK_PMD_MLX5:
449 case VNET_DPDK_PMD_QEDE:
450 case VNET_DPDK_PMD_BNXT:
451 xd->port_type = port_type_from_speed_capa (&dev_info);
455 case VNET_DPDK_PMD_IGBVF:
456 case VNET_DPDK_PMD_IXGBEVF:
457 case VNET_DPDK_PMD_I40EVF:
458 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
459 if (dm->conf->no_tx_checksum_offload == 0)
461 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
462 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
464 DPDK_DEVICE_FLAG_TX_OFFLOAD |
465 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
470 case VNET_DPDK_PMD_IAVF:
471 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
472 xd->supported_flow_actions = VNET_FLOW_ACTION_MARK |
473 VNET_FLOW_ACTION_REDIRECT_TO_NODE |
474 VNET_FLOW_ACTION_REDIRECT_TO_QUEUE |
475 VNET_FLOW_ACTION_BUFFER_ADVANCE |
476 VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP;
478 if (dm->conf->no_tx_checksum_offload == 0)
480 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
481 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
483 DPDK_DEVICE_FLAG_TX_OFFLOAD |
484 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
488 case VNET_DPDK_PMD_THUNDERX:
489 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
491 if (dm->conf->no_tx_checksum_offload == 0)
493 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
494 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
495 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD;
499 case VNET_DPDK_PMD_ENA:
500 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
501 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
504 case VNET_DPDK_PMD_DPAA2:
505 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
509 case VNET_DPDK_PMD_ENIC:
511 struct rte_eth_link l;
512 rte_eth_link_get_nowait (i, &l);
513 xd->port_type = port_type_from_link_speed (l.link_speed);
514 if (dm->conf->enable_tcp_udp_checksum)
515 dpdk_enable_l4_csum_offload (xd);
519 /* Intel Red Rock Canyon */
520 case VNET_DPDK_PMD_FM10K:
521 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
525 case VNET_DPDK_PMD_VIRTIO:
526 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_NONE;
527 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
528 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
529 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
533 case VNET_DPDK_PMD_VMXNET3:
534 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
535 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
538 case VNET_DPDK_PMD_AF_PACKET:
539 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
540 xd->af_packet_instance_num = af_packet_instance_num++;
543 case VNET_DPDK_PMD_VIRTIO_USER:
544 xd->port_type = VNET_DPDK_PORT_TYPE_VIRTIO_USER;
547 case VNET_DPDK_PMD_VHOST_ETHER:
548 xd->port_type = VNET_DPDK_PORT_TYPE_VHOST_ETHER;
551 case VNET_DPDK_PMD_LIOVF_ETHER:
552 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
555 case VNET_DPDK_PMD_FAILSAFE:
556 xd->port_type = VNET_DPDK_PORT_TYPE_FAILSAFE;
557 xd->port_conf.intr_conf.lsc = 1;
560 case VNET_DPDK_PMD_NETVSC:
562 struct rte_eth_link l;
563 rte_eth_link_get_nowait (i, &l);
564 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
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);
613 xd->device_index = xd - dm->devices;
614 xd->per_interface_next_index = ~0;
616 /* assign interface to input thread */
619 error = ethernet_register_interface
620 (dm->vnet_main, dpdk_device_class.index, xd->device_index,
621 /* ethernet address */ addr,
622 &xd->hw_if_index, dpdk_flag_change);
627 * Ensure default mtu is not > the mtu read from the hardware.
628 * Otherwise rte_eth_dev_configure() will fail and the port will
630 * Calculate max_frame_size and mtu supported by NIC
632 if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
635 * This device does not support the platforms's max frame
636 * size. Use it's advertised mru instead.
638 max_rx_frame = dev_info.max_rx_pktlen;
639 mtu = dev_info.max_rx_pktlen - sizeof (ethernet_header_t);
643 /* VPP treats MTU and max_rx_pktlen both equal to
644 * ETHERNET_MAX_PACKET_BYTES, if dev_info.max_rx_pktlen >=
645 * ETHERNET_MAX_PACKET_BYTES + sizeof(ethernet_header_t)
647 if (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
648 sizeof (ethernet_header_t)))
650 mtu = ETHERNET_MAX_PACKET_BYTES;
651 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
654 * Some platforms do not account for Ethernet FCS (4 bytes) in
655 * MTU calculations. To interop with them increase mru but only
656 * if the device's settings can support it.
658 if (dpdk_port_crc_strip_enabled (xd) &&
659 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
660 sizeof (ethernet_header_t) +
668 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
669 mtu = ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
671 if (dpdk_port_crc_strip_enabled (xd) &&
672 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)))
679 if (xd->pmd == VNET_DPDK_PMD_FAILSAFE)
681 /* failsafe device numerables are reported with active device only,
682 * need to query the mtu for current device setup to overwrite
686 if (!rte_eth_dev_get_mtu (i, &dev_mtu))
689 max_rx_frame = mtu + sizeof (ethernet_header_t);
691 if (dpdk_port_crc_strip_enabled (xd))
698 /*Set port rxmode config */
699 xd->port_conf.rxmode.max_rx_pkt_len = max_rx_frame;
701 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->hw_if_index);
702 xd->sw_if_index = sw->sw_if_index;
703 vnet_hw_interface_set_input_node (dm->vnet_main, xd->hw_if_index,
704 dpdk_input_node.index);
706 if (devconf->workers)
710 clib_bitmap_foreach (i, devconf->workers, ({
711 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q++,
712 vdm->first_worker_thread_index + i);
716 for (q = 0; q < xd->rx_q_used; q++)
718 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q, /* any */
722 /*Get vnet hardware interface */
723 hi = vnet_get_hw_interface (dm->vnet_main, xd->hw_if_index);
725 /*Override default max_packet_bytes and max_supported_bytes set in
726 * ethernet_register_interface() above*/
729 hi->max_packet_bytes = mtu;
730 hi->max_supported_packet_bytes = max_rx_frame;
731 hi->numa_node = xd->cpu_socket;
733 /* Indicate ability to support L3 DMAC filtering and
734 * initialize interface to L3 non-promisc mode */
735 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_MAC_FILTER;
736 ethernet_set_flags (dm->vnet_main, xd->hw_if_index,
737 ETHERNET_INTERFACE_FLAG_DEFAULT_L3);
740 if (dm->conf->no_tx_checksum_offload == 0)
741 if (xd->flags & DPDK_DEVICE_FLAG_TX_OFFLOAD && hi != NULL)
742 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD;
744 if (devconf->tso == DPDK_DEVICE_TSO_ON && hi != NULL)
746 /*tcp_udp checksum must be enabled*/
747 if ((dm->conf->enable_tcp_udp_checksum) &&
748 (hi->flags & VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD))
750 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO;
751 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_TSO |
752 DEV_TX_OFFLOAD_UDP_TSO;
755 clib_warning ("%s: TCP/UDP checksum offload must be enabled",
759 dpdk_device_setup (xd);
761 /* rss queues should be configured after dpdk_device_setup() */
762 if ((hi != NULL) && (devconf->rss_queues != NULL))
764 if (vnet_hw_interface_set_rss_queues
765 (vnet_get_main (), hi, devconf->rss_queues))
767 clib_warning ("%s: Failed to set rss queues", hi->name);
771 if (vec_len (xd->errors))
772 dpdk_log_err ("setup failed for device %U. Errors:\n %U",
773 format_dpdk_device_name, i,
774 format_dpdk_device_errors, xd);
777 * A note on Cisco VIC (PMD_ENIC) and VLAN:
779 * With Cisco VIC vNIC, every ingress packet is tagged. On a
780 * trunk vNIC (C series "standalone" server), packets on no VLAN
781 * are tagged with vlan 0. On an access vNIC (standalone or B
782 * series "blade" server), packets on the default/native VLAN
783 * are tagged with that vNIC's VLAN. VPP expects these packets
784 * to be untagged, and previously enabled VLAN strip on VIC by
785 * default. But it also broke vlan sub-interfaces.
787 * The VIC adapter has "untag default vlan" ingress VLAN rewrite
788 * mode, which removes tags from these packets. VPP now includes
789 * a local patch for the enic driver to use this untag mode, so
790 * enabling vlan stripping is no longer needed. In future, the
791 * driver + dpdk will have an API to set the mode after
792 * rte_eal_init. Then, this note and local patch will be
797 * VLAN stripping: default to VLAN strip disabled, unless specified
798 * otherwise in the startup config.
801 vlan_off = rte_eth_dev_get_vlan_offload (xd->port_id);
802 if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
804 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
805 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
806 dpdk_log_info ("VLAN strip enabled for interface\n");
808 dpdk_log_warn ("VLAN strip cannot be supported by interface\n");
809 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_VLAN_STRIP;
813 if (vlan_off & ETH_VLAN_STRIP_OFFLOAD)
815 vlan_off &= ~ETH_VLAN_STRIP_OFFLOAD;
816 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
817 dpdk_log_warn ("set VLAN offload failed\n");
819 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP;
823 hi->max_packet_bytes = xd->port_conf.rxmode.max_rx_pkt_len
824 - sizeof (ethernet_header_t);
826 dpdk_log_warn ("hi NULL");
828 if (dm->conf->no_multi_seg)
829 mtu = mtu > ETHER_MAX_LEN ? ETHER_MAX_LEN : mtu;
831 rte_eth_dev_set_mtu (xd->port_id, mtu);
840 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
842 vlib_main_t *vm = vlib_get_main ();
845 int num_whitelisted = vec_len (conf->dev_confs);
846 vlib_pci_device_info_t *d = 0;
847 vlib_pci_addr_t *addr = 0, *addrs;
850 addrs = vlib_pci_get_all_dev_addrs ();
852 vec_foreach (addr, addrs)
854 dpdk_device_config_t * devconf = 0;
855 vec_reset_length (pci_addr);
856 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, addr, 0);
859 vlib_pci_free_device_info (d);
862 d = vlib_pci_get_device_info (vm, addr, &error);
865 clib_error_report (error);
869 if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
874 uword * p = hash_get (conf->device_config_index_by_pci_addr, addr->as_u32);
882 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
885 /* Enforce Device blacklist by vendor and device */
886 for (i = 0; i < vec_len (conf->blacklist_by_pci_vendor_and_device); i++)
889 vendor = (u16)(conf->blacklist_by_pci_vendor_and_device[i] >> 16);
890 device = (u16)(conf->blacklist_by_pci_vendor_and_device[i] & 0xFFFF);
891 if (d->vendor_id == vendor && d->device_id == device)
894 * Expected case: device isn't whitelisted,
899 /* Device is blacklisted */
900 pool_get (conf->dev_confs, devconf);
901 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
902 devconf - conf->dev_confs);
903 devconf->pci_addr.as_u32 = addr->as_u32;
904 devconf->is_blacklisted = 1;
907 else /* explicitly whitelisted, ignore the device blacklist */
913 if (d->vendor_id == 0x1af4 &&
914 (d->device_id == VIRTIO_PCI_LEGACY_DEVICEID_NET ||
915 d->device_id == VIRTIO_PCI_MODERN_DEVICEID_NET))
918 else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
921 * For vmxnet3 PCI, unless it is explicitly specified in the whitelist,
922 * the default is to put it in the blacklist.
926 pool_get (conf->dev_confs, devconf);
927 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
928 devconf - conf->dev_confs);
929 devconf->pci_addr.as_u32 = addr->as_u32;
930 devconf->is_blacklisted = 1;
933 /* all Intel network devices */
934 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
936 /* all Intel QAT devices VFs */
937 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
938 (d->device_id == 0x0443 || d->device_id == 0x18a1 || d->device_id == 0x19e3 ||
939 d->device_id == 0x37c9 || d->device_id == 0x6f55))
942 else if (d->vendor_id == 0x1137 &&
943 (d->device_id == 0x0043 || d->device_id == 0x0071))
946 else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
948 /* Amazon Elastic Network Adapter */
949 else if (d->vendor_id == 0x1d0f && d->device_id >= 0xec20 && d->device_id <= 0xec21)
951 /* Cavium Network Adapter */
952 else if (d->vendor_id == 0x177d && d->device_id == 0x9712)
954 /* Cavium FastlinQ QL41000 Series */
955 else if (d->vendor_id == 0x1077 && d->device_id >= 0x8070 && d->device_id <= 0x8090)
957 /* Mellanox CX3, CX3VF */
958 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1003 && d->device_id <= 0x1004)
962 /* Mellanox CX4, CX4VF, CX4LX, CX4LXVF, CX5, CX5VF, CX5EX, CX5EXVF */
963 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1013 && d->device_id <= 0x101a)
967 /* Mellanox CX6, CX6VF, CX6DX, CX6DXVF */
968 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x101b && d->device_id <= 0x101e)
972 /* Broadcom NetXtreme S, and E series only */
973 else if (d->vendor_id == 0x14e4 &&
974 ((d->device_id >= 0x16c0 &&
975 d->device_id != 0x16c6 && d->device_id != 0x16c7 &&
976 d->device_id != 0x16dd && d->device_id != 0x16f7 &&
977 d->device_id != 0x16fd && d->device_id != 0x16fe &&
978 d->device_id != 0x170d && d->device_id != 0x170c &&
979 d->device_id != 0x170e && d->device_id != 0x1712 &&
980 d->device_id != 0x1713) ||
981 (d->device_id == 0x1604 || d->device_id == 0x1605 ||
982 d->device_id == 0x1614 || d->device_id == 0x1606 ||
983 d->device_id == 0x1609 || d->device_id == 0x1614)))
987 dpdk_log_warn ("Unsupported PCI device 0x%04x:0x%04x found "
988 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
993 error = vlib_pci_bind_to_uio (vm, addr, (char *) conf->uio_driver_name);
999 pool_get (conf->dev_confs, devconf);
1000 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
1001 devconf - conf->dev_confs);
1002 devconf->pci_addr.as_u32 = addr->as_u32;
1004 devconf->is_blacklisted = 1;
1005 clib_error_report (error);
1009 vec_free (pci_addr);
1010 vlib_pci_free_device_info (d);
1014 dpdk_bind_vmbus_devices_to_uio (dpdk_config_main_t * conf)
1016 clib_error_t *error;
1017 vlib_vmbus_addr_t *addrs, *addr = 0;
1019 addrs = vlib_vmbus_get_all_dev_addrs ();
1022 vec_foreach (addr, addrs)
1024 error = vlib_vmbus_bind_to_uio (addr);
1028 clib_error_report (error);
1034 static clib_error_t *
1035 dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr,
1036 unformat_input_t * input, u8 is_default)
1038 clib_error_t *error = 0;
1040 dpdk_device_config_t *devconf;
1041 unformat_input_t sub_input;
1045 devconf = &conf->default_devconf;
1049 p = hash_get (conf->device_config_index_by_pci_addr, pci_addr.as_u32);
1053 pool_get (conf->dev_confs, devconf);
1054 hash_set (conf->device_config_index_by_pci_addr, pci_addr.as_u32,
1055 devconf - conf->dev_confs);
1058 return clib_error_return (0,
1059 "duplicate configuration for PCI address %U",
1060 format_vlib_pci_addr, &pci_addr);
1063 devconf->pci_addr.as_u32 = pci_addr.as_u32;
1064 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
1069 unformat_skip_white_space (input);
1070 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1072 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
1074 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
1076 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
1078 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
1080 else if (unformat (input, "name %s", &devconf->name))
1082 else if (unformat (input, "workers %U", unformat_bitmap_list,
1087 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
1089 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
1093 else if (unformat (input, "vlan-strip-offload off"))
1094 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
1095 else if (unformat (input, "vlan-strip-offload on"))
1096 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
1097 else if (unformat (input, "tso on"))
1099 devconf->tso = DPDK_DEVICE_TSO_ON;
1101 else if (unformat (input, "tso off"))
1103 devconf->tso = DPDK_DEVICE_TSO_OFF;
1105 else if (unformat (input, "devargs %s", &devconf->devargs))
1107 else if (unformat (input, "rss-queues %U",
1108 unformat_bitmap_list, &devconf->rss_queues))
1112 error = clib_error_return (0, "unknown input `%U'",
1113 format_unformat_error, input);
1121 if (devconf->workers && devconf->num_rx_queues == 0)
1122 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
1123 else if (devconf->workers &&
1124 clib_bitmap_count_set_bits (devconf->workers) !=
1125 devconf->num_rx_queues)
1127 clib_error_return (0,
1128 "%U: number of worker threads must be "
1129 "equal to number of rx queues", format_vlib_pci_addr,
1135 static clib_error_t *
1136 dpdk_log_read_ready (clib_file_t * uf)
1138 unformat_input_t input;
1145 uword len = vec_len (s);
1146 vec_resize (s, len + n_try);
1148 n = read (uf->file_descriptor, s + len, n_try);
1149 if (n < 0 && errno != EAGAIN)
1150 return clib_error_return_unix (0, "read");
1151 _vec_len (s) = len + (n < 0 ? 0 : n);
1154 unformat_init_vector (&input, s);
1156 while (unformat_user (&input, unformat_line, &line))
1158 dpdk_log_notice ("%v", line);
1162 unformat_free (&input);
1166 static clib_error_t *
1167 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
1169 clib_error_t *error = 0;
1170 dpdk_config_main_t *conf = &dpdk_config_main;
1171 vlib_thread_main_t *tm = vlib_get_thread_main ();
1172 dpdk_device_config_t *devconf;
1173 vlib_pci_addr_t pci_addr;
1174 unformat_input_t sub_input;
1175 uword default_hugepage_sz, x;
1178 int num_whitelisted = 0;
1183 u8 *huge_dir_path = 0;
1184 u32 vendor, device, domain, bus, func;
1187 format (0, "%s/hugepages%c", vlib_unix_get_runtime_dir (), 0);
1189 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
1191 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1193 /* Prime the pump */
1194 if (unformat (input, "no-hugetlb"))
1196 vec_add1 (conf->eal_init_args, (u8 *) "--no-huge");
1199 else if (unformat (input, "enable-tcp-udp-checksum"))
1200 conf->enable_tcp_udp_checksum = 1;
1202 else if (unformat (input, "no-tx-checksum-offload"))
1203 conf->no_tx_checksum_offload = 1;
1205 else if (unformat (input, "decimal-interface-names"))
1206 conf->interface_name_format_decimal = 1;
1208 else if (unformat (input, "no-multi-seg"))
1209 conf->no_multi_seg = 1;
1211 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
1215 dpdk_device_config (conf, (vlib_pci_addr_t) (u32) ~ 1, &sub_input,
1223 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
1224 unformat_vlib_cli_sub_input, &sub_input))
1226 error = dpdk_device_config (conf, pci_addr, &sub_input, 0);
1233 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
1235 error = dpdk_device_config (conf, pci_addr, 0, 0);
1242 else if (unformat (input, "num-mem-channels %d", &conf->nchannels))
1243 conf->nchannels_set_manually = 0;
1244 else if (unformat (input, "num-crypto-mbufs %d",
1245 &conf->num_crypto_mbufs))
1247 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
1249 else if (unformat (input, "socket-mem %s", &socket_mem))
1251 else if (unformat (input, "no-pci"))
1254 tmp = format (0, "--no-pci%c", 0);
1255 vec_add1 (conf->eal_init_args, tmp);
1259 (input, "blacklist %x:%x:%x.%x", &domain, &bus, &device, &func))
1262 format (0, "-b %04x:%02x:%02x.%x%c", domain, bus, device, func,
1264 vec_add1 (conf->eal_init_args, tmp);
1266 else if (unformat (input, "blacklist %x:%x", &vendor, &device))
1268 u32 blacklist_entry;
1269 if (vendor > 0xFFFF)
1270 return clib_error_return (0, "blacklist PCI vendor out of range");
1271 if (device > 0xFFFF)
1272 return clib_error_return (0, "blacklist PCI device out of range");
1273 blacklist_entry = (vendor << 16) | (device & 0xffff);
1274 vec_add1 (conf->blacklist_by_pci_vendor_and_device,
1277 else if (unformat (input, "no-vmbus"))
1280 tmp = format (0, "--no-vmbus%c", 0);
1281 vec_add1 (conf->eal_init_args, tmp);
1285 else if (unformat(input, #a)) \
1287 tmp = format (0, "--%s%c", #a, 0); \
1288 vec_add1 (conf->eal_init_args, tmp); \
1290 foreach_eal_double_hyphen_predicate_arg
1293 else if (unformat(input, #a " %s", &s)) \
1295 if (!strncmp(#a, "file-prefix", 11)) \
1297 tmp = format (0, "--%s%c", #a, 0); \
1298 vec_add1 (conf->eal_init_args, tmp); \
1300 if (!strncmp(#a, "vdev", 4)) \
1301 if (strstr((char*)s, "af_packet")) \
1302 clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
1303 vec_add1 (conf->eal_init_args, s); \
1305 foreach_eal_double_hyphen_arg
1308 else if (unformat(input, #a " %s", &s)) \
1310 tmp = format (0, "-%s%c", #b, 0); \
1311 vec_add1 (conf->eal_init_args, tmp); \
1313 vec_add1 (conf->eal_init_args, s); \
1315 foreach_eal_single_hyphen_arg
1318 else if (unformat(input, #a " %s", &s)) \
1320 tmp = format (0, "-%s%c", #b, 0); \
1321 vec_add1 (conf->eal_init_args, tmp); \
1323 vec_add1 (conf->eal_init_args, s); \
1324 conf->a##_set_manually = 1; \
1326 foreach_eal_single_hyphen_mandatory_arg
1328 else if (unformat (input, "default"))
1331 else if (unformat_skip_white_space (input))
1335 error = clib_error_return (0, "unknown input `%U'",
1336 format_unformat_error, input);
1341 if (!conf->uio_driver_name)
1342 conf->uio_driver_name = format (0, "auto%c", 0);
1344 default_hugepage_sz = clib_mem_get_default_hugepage_size ();
1347 clib_bitmap_foreach (x, tm->cpu_socket_bitmap, (
1351 /* preallocate at least 16MB of hugepages per socket,
1352 if more is needed it is up to consumer to preallocate more */
1353 n_pages = round_pow2 ((uword) 16 << 20, default_hugepage_sz);
1354 n_pages /= default_hugepage_sz;
1356 if ((e = clib_sysfs_prealloc_hugepages(x, 0, n_pages)))
1357 clib_error_report (e);
1363 tmp = format (0, "--file-prefix%c", 0);
1364 vec_add1 (conf->eal_init_args, tmp);
1365 tmp = format (0, "vpp%c", 0);
1366 vec_add1 (conf->eal_init_args, tmp);
1372 /* I'll bet that -c and -n must be the first and second args... */
1373 if (!conf->coremask_set_manually)
1375 vlib_thread_registration_t *tr;
1376 uword *coremask = 0;
1379 /* main thread core */
1380 coremask = clib_bitmap_set (coremask, tm->main_lcore, 1);
1382 for (i = 0; i < vec_len (tm->registrations); i++)
1384 tr = tm->registrations[i];
1385 coremask = clib_bitmap_or (coremask, tr->coremask);
1388 vec_insert (conf->eal_init_args, 2, 1);
1389 conf->eal_init_args[1] = (u8 *) "-c";
1390 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1391 conf->eal_init_args[2] = tmp;
1392 clib_bitmap_free (coremask);
1395 if (!conf->nchannels_set_manually)
1397 vec_insert (conf->eal_init_args, 2, 3);
1398 conf->eal_init_args[3] = (u8 *) "-n";
1399 tmp = format (0, "%d", conf->nchannels);
1400 vec_terminate_c_string (tmp);
1401 conf->eal_init_args[4] = tmp;
1404 if (no_pci == 0 && geteuid () == 0)
1405 dpdk_bind_devices_to_uio (conf);
1407 if (no_vmbus == 0 && geteuid () == 0)
1408 dpdk_bind_vmbus_devices_to_uio (conf);
1411 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1412 devconf->x = conf->default_devconf.x ;
1415 pool_foreach (devconf, conf->dev_confs, ({
1417 /* default per-device config items */
1418 foreach_dpdk_device_config_item
1420 /* copy vlan_strip config from default device */
1421 if (devconf->vlan_strip_offload == 0 &&
1422 conf->default_devconf.vlan_strip_offload > 0)
1423 devconf->vlan_strip_offload =
1424 conf->default_devconf.vlan_strip_offload;
1426 /* copy tso config from default device */
1429 /* copy tso config from default device */
1432 /* copy rss_queues config from default device */
1435 /* add DPDK EAL whitelist/blacklist entry */
1436 if (num_whitelisted > 0 && devconf->is_blacklisted == 0)
1438 tmp = format (0, "-w%c", 0);
1439 vec_add1 (conf->eal_init_args, tmp);
1440 if (devconf->devargs)
1442 tmp = format (0, "%U,%s", format_vlib_pci_addr, &devconf->pci_addr, devconf->devargs, 0);
1446 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1448 vec_add1 (conf->eal_init_args, tmp);
1450 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0)
1452 tmp = format (0, "-b%c", 0);
1453 vec_add1 (conf->eal_init_args, tmp);
1454 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1455 vec_add1 (conf->eal_init_args, tmp);
1462 /* set master-lcore */
1463 tmp = format (0, "--master-lcore%c", 0);
1464 vec_add1 (conf->eal_init_args, tmp);
1465 tmp = format (0, "%u%c", tm->main_lcore, 0);
1466 vec_add1 (conf->eal_init_args, tmp);
1470 clib_warning ("socket-mem argument is deprecated");
1472 /* NULL terminate the "argv" vector, in case of stupidity */
1473 vec_add1 (conf->eal_init_args, 0);
1474 _vec_len (conf->eal_init_args) -= 1;
1476 /* Set up DPDK eal and packet mbuf pool early. */
1478 int log_fds[2] = { 0 };
1479 if (pipe (log_fds) == 0)
1481 if (fcntl (log_fds[1], F_SETFL, O_NONBLOCK) == 0)
1483 FILE *f = fdopen (log_fds[1], "a");
1484 if (f && rte_openlog_stream (f) == 0)
1486 clib_file_t t = { 0 };
1487 t.read_function = dpdk_log_read_ready;
1488 t.file_descriptor = log_fds[0];
1489 t.description = format (0, "DPDK logging pipe");
1490 clib_file_add (&file_main, &t);
1500 vm = vlib_get_main ();
1502 /* make copy of args as rte_eal_init tends to mess up with arg array */
1503 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1504 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1505 conf->eal_init_args[i]);
1507 vec_terminate_c_string (conf->eal_init_args_str);
1509 dpdk_log_warn ("EAL init args: %s", conf->eal_init_args_str);
1510 ret = rte_eal_init (vec_len (conf->eal_init_args),
1511 (char **) conf->eal_init_args);
1513 /* lazy umount hugepages */
1514 umount2 ((char *) huge_dir_path, MNT_DETACH);
1515 rmdir ((char *) huge_dir_path);
1516 vec_free (huge_dir_path);
1519 return clib_error_return (0, "rte_eal_init returned %d", ret);
1521 /* main thread 1st */
1522 if ((error = dpdk_buffer_pools_create (vm)))
1529 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1532 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1534 vnet_main_t *vnm = vnet_get_main ();
1535 struct rte_eth_link prev_link = xd->link;
1537 u8 hw_flags_chg = 0;
1539 /* only update link state for PMD interfaces */
1540 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
1543 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1544 clib_memset (&xd->link, 0, sizeof (xd->link));
1545 rte_eth_link_get_nowait (xd->port_id, &xd->link);
1547 if (LINK_STATE_ELOGS)
1549 vlib_main_t *vm = vlib_get_main ();
1550 ELOG_TYPE_DECLARE (e) =
1553 "update-link-state: sw_if_index %d, admin_up %d,"
1554 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1563 ed = ELOG_DATA (&vm->elog_main, e);
1564 ed->sw_if_index = xd->sw_if_index;
1565 ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1566 ed->old_link_state = (u8)
1567 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
1568 ed->new_link_state = (u8) xd->link.link_status;
1571 if ((xd->link.link_duplex != prev_link.link_duplex))
1574 switch (xd->link.link_duplex)
1576 case ETH_LINK_HALF_DUPLEX:
1577 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1579 case ETH_LINK_FULL_DUPLEX:
1580 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1586 if (xd->link.link_speed != prev_link.link_speed)
1587 vnet_hw_interface_set_link_speed (vnm, xd->hw_if_index,
1588 xd->link.link_speed * 1000);
1590 if (xd->link.link_status != prev_link.link_status)
1594 if (xd->link.link_status)
1595 hw_flags |= VNET_HW_INTERFACE_FLAG_LINK_UP;
1600 if (LINK_STATE_ELOGS)
1602 vlib_main_t *vm = vlib_get_main ();
1604 ELOG_TYPE_DECLARE (e) =
1607 "update-link-state: sw_if_index %d, new flags %d",.format_args
1615 ed = ELOG_DATA (&vm->elog_main, e);
1616 ed->sw_if_index = xd->sw_if_index;
1617 ed->flags = hw_flags;
1619 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, hw_flags);
1624 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1626 clib_error_t *error;
1627 dpdk_main_t *dm = &dpdk_main;
1629 vlib_thread_main_t *tm = vlib_get_thread_main ();
1631 error = dpdk_lib_init (dm);
1634 clib_error_report (error);
1636 error = dpdk_cryptodev_init (vm);
1638 clib_error_report (error);
1640 tm->worker_thread_release = 1;
1642 f64 now = vlib_time_now (vm);
1643 vec_foreach (xd, dm->devices)
1645 dpdk_update_link_state (xd, now);
1651 * check each time through the loop in case intervals are changed
1653 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1654 dm->link_state_poll_interval : dm->stat_poll_interval;
1656 vlib_process_wait_for_event_or_clock (vm, min_wait);
1658 if (dm->admin_up_down_in_progress)
1659 /* skip the poll if an admin up down is in progress (on any interface) */
1662 vec_foreach (xd, dm->devices)
1664 f64 now = vlib_time_now (vm);
1665 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1666 dpdk_update_counters (xd, now);
1667 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1668 dpdk_update_link_state (xd, now);
1677 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1678 .function = dpdk_process,
1679 .type = VLIB_NODE_TYPE_PROCESS,
1680 .name = "dpdk-process",
1681 .process_log2_n_stack_bytes = 17,
1685 static clib_error_t *
1686 dpdk_init (vlib_main_t * vm)
1688 dpdk_main_t *dm = &dpdk_main;
1689 clib_error_t *error = 0;
1691 /* verify that structs are cacheline aligned */
1692 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1693 "Cache line marker must be 1st element in dpdk_device_t");
1694 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1695 CLIB_CACHE_LINE_BYTES,
1696 "Data in cache line 0 is bigger than cache line size");
1697 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1698 "Cache line marker must be 1st element in frame_queue_trace_t");
1699 STATIC_ASSERT (RTE_CACHE_LINE_SIZE == 1 << CLIB_LOG2_CACHE_LINE_BYTES,
1700 "DPDK RTE CACHE LINE SIZE does not match with 1<<CLIB_LOG2_CACHE_LINE_BYTES");
1702 dpdk_cli_reference ();
1705 dm->vnet_main = vnet_get_main ();
1706 dm->conf = &dpdk_config_main;
1708 dm->conf->nchannels = 4;
1709 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1710 vec_add1 (dm->conf->eal_init_args, (u8 *) "--in-memory");
1712 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1713 dm->buffer_flags_template = (VLIB_BUFFER_TOTAL_LENGTH_VALID |
1714 VLIB_BUFFER_EXT_HDR_VALID |
1715 VNET_BUFFER_F_L4_CHECKSUM_COMPUTED |
1716 VNET_BUFFER_F_L4_CHECKSUM_CORRECT);
1718 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1719 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1721 dm->log_default = vlib_log_register_class ("dpdk", 0);
1726 VLIB_INIT_FUNCTION (dpdk_init);
1729 * fd.io coding-style-patch-verification: ON
1732 * eval: (c-set-style "gnu")