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_conf.rxmode.mq_mode = ETH_MQ_RX_NONE;
532 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
533 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
534 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
538 case VNET_DPDK_PMD_VMXNET3:
539 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
540 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
543 case VNET_DPDK_PMD_AF_PACKET:
544 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
545 xd->af_packet_instance_num = af_packet_instance_num++;
548 case VNET_DPDK_PMD_VIRTIO_USER:
549 xd->port_type = VNET_DPDK_PORT_TYPE_VIRTIO_USER;
552 case VNET_DPDK_PMD_VHOST_ETHER:
553 xd->port_type = VNET_DPDK_PORT_TYPE_VHOST_ETHER;
556 case VNET_DPDK_PMD_LIOVF_ETHER:
557 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
560 case VNET_DPDK_PMD_FAILSAFE:
561 xd->port_type = VNET_DPDK_PORT_TYPE_FAILSAFE;
562 xd->port_conf.intr_conf.lsc = 1;
565 case VNET_DPDK_PMD_NETVSC:
566 xd->port_type = port_type_from_link_speed (l.link_speed);
570 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
573 if (devconf->num_rx_desc)
574 xd->nb_rx_desc = devconf->num_rx_desc;
577 /* If num_rx_desc is not specified by VPP user, the current CPU is working
578 with 2M page and has no L3 cache, default num_rx_desc is changed to 512
579 from original 1024 to help reduce TLB misses.
581 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
582 && check_l3cache() == 0)
583 xd->nb_rx_desc = 512;
586 if (devconf->num_tx_desc)
587 xd->nb_tx_desc = devconf->num_tx_desc;
590 /* If num_tx_desc is not specified by VPP user, the current CPU is working
591 with 2M page and has no L3 cache, default num_tx_desc is changed to 512
592 from original 1024 to help reduce TLB misses.
594 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
595 && check_l3cache() == 0)
596 xd->nb_tx_desc = 512;
600 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
602 f64 now = vlib_time_now (vm);
604 rnd = (u32) (now * 1e6);
605 rnd = random_u32 (&rnd);
606 clib_memcpy (addr + 2, &rnd, sizeof (rnd));
611 rte_eth_macaddr_get (i, (void *) addr);
613 if (xd->tx_q_used < tm->n_vlib_mains)
614 dpdk_device_lock_init (xd);
617 xd->device_index = xd - dm->devices;
618 xd->per_interface_next_index = ~0;
620 /* assign interface to input thread */
624 error = ethernet_register_interface
625 (dm->vnet_main, dpdk_device_class.index, xd->device_index,
626 /* ethernet address */ addr,
627 &xd->hw_if_index, dpdk_flag_change);
632 * Ensure default mtu is not > the mtu read from the hardware.
633 * Otherwise rte_eth_dev_configure() will fail and the port will
635 * Calculate max_frame_size and mtu supported by NIC
637 if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
640 * This device does not support the platforms's max frame
641 * size. Use it's advertised mru instead.
643 max_rx_frame = dev_info.max_rx_pktlen;
644 mtu = dev_info.max_rx_pktlen - sizeof (ethernet_header_t);
648 /* VPP treats MTU and max_rx_pktlen both equal to
649 * ETHERNET_MAX_PACKET_BYTES, if dev_info.max_rx_pktlen >=
650 * ETHERNET_MAX_PACKET_BYTES + sizeof(ethernet_header_t)
652 if (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
653 sizeof (ethernet_header_t)))
655 mtu = ETHERNET_MAX_PACKET_BYTES;
656 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
659 * Some platforms do not account for Ethernet FCS (4 bytes) in
660 * MTU calculations. To interop with them increase mru but only
661 * if the device's settings can support it.
663 if (dpdk_port_crc_strip_enabled (xd) &&
664 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
665 sizeof (ethernet_header_t) +
673 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
674 mtu = ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
676 if (dpdk_port_crc_strip_enabled (xd) &&
677 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)))
684 if (xd->pmd == VNET_DPDK_PMD_FAILSAFE)
686 /* failsafe device numerables are reported with active device only,
687 * need to query the mtu for current device setup to overwrite
691 if (!rte_eth_dev_get_mtu (i, &dev_mtu))
694 max_rx_frame = mtu + sizeof (ethernet_header_t);
696 if (dpdk_port_crc_strip_enabled (xd))
703 /*Set port rxmode config */
704 xd->port_conf.rxmode.max_rx_pkt_len = max_rx_frame;
706 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->hw_if_index);
707 xd->sw_if_index = sw->sw_if_index;
708 vnet_hw_interface_set_input_node (dm->vnet_main, xd->hw_if_index,
709 dpdk_input_node.index);
711 if (devconf->workers)
715 clib_bitmap_foreach (i, devconf->workers, ({
716 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q++,
717 vdm->first_worker_thread_index + i);
721 for (q = 0; q < xd->rx_q_used; q++)
723 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q, /* any */
727 /*Get vnet hardware interface */
728 hi = vnet_get_hw_interface (dm->vnet_main, xd->hw_if_index);
730 /*Override default max_packet_bytes and max_supported_bytes set in
731 * ethernet_register_interface() above*/
734 hi->max_packet_bytes = mtu;
735 hi->max_supported_packet_bytes = max_rx_frame;
736 hi->numa_node = xd->cpu_socket;
739 if (dm->conf->no_tx_checksum_offload == 0)
740 if (xd->flags & DPDK_DEVICE_FLAG_TX_OFFLOAD && hi != NULL)
741 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD;
743 if (devconf->tso == DPDK_DEVICE_TSO_ON && hi != NULL)
745 /*tcp_udp checksum must be enabled*/
746 if ((dm->conf->enable_tcp_udp_checksum) &&
747 (hi->flags & VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD))
749 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO;
750 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_TSO |
751 DEV_TX_OFFLOAD_UDP_TSO;
754 clib_warning ("%s: TCP/UDP checksum offload must be enabled",
758 dpdk_device_setup (xd);
760 if (vec_len (xd->errors))
761 dpdk_log_err ("setup failed for device %U. Errors:\n %U",
762 format_dpdk_device_name, i,
763 format_dpdk_device_errors, xd);
766 * A note on Cisco VIC (PMD_ENIC) and VLAN:
768 * With Cisco VIC vNIC, every ingress packet is tagged. On a
769 * trunk vNIC (C series "standalone" server), packets on no VLAN
770 * are tagged with vlan 0. On an access vNIC (standalone or B
771 * series "blade" server), packets on the default/native VLAN
772 * are tagged with that vNIC's VLAN. VPP expects these packets
773 * to be untagged, and previously enabled VLAN strip on VIC by
774 * default. But it also broke vlan sub-interfaces.
776 * The VIC adapter has "untag default vlan" ingress VLAN rewrite
777 * mode, which removes tags from these packets. VPP now includes
778 * a local patch for the enic driver to use this untag mode, so
779 * enabling vlan stripping is no longer needed. In future, the
780 * driver + dpdk will have an API to set the mode after
781 * rte_eal_init. Then, this note and local patch will be
786 * VLAN stripping: default to VLAN strip disabled, unless specified
787 * otherwise in the startup config.
790 vlan_off = rte_eth_dev_get_vlan_offload (xd->port_id);
791 if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
793 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
794 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
795 dpdk_log_info ("VLAN strip enabled for interface\n");
797 dpdk_log_warn ("VLAN strip cannot be supported by interface\n");
798 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_VLAN_STRIP;
802 if (vlan_off & ETH_VLAN_STRIP_OFFLOAD)
804 vlan_off &= ~ETH_VLAN_STRIP_OFFLOAD;
805 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
806 dpdk_log_warn ("set VLAN offload failed\n");
808 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP;
812 hi->max_packet_bytes = xd->port_conf.rxmode.max_rx_pkt_len
813 - sizeof (ethernet_header_t);
815 dpdk_log_warn ("hi NULL");
817 if (dm->conf->no_multi_seg)
818 mtu = mtu > ETHER_MAX_LEN ? ETHER_MAX_LEN : mtu;
820 rte_eth_dev_set_mtu (xd->port_id, mtu);
828 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
830 vlib_main_t *vm = vlib_get_main ();
833 int num_whitelisted = vec_len (conf->dev_confs);
834 vlib_pci_device_info_t *d = 0;
835 vlib_pci_addr_t *addr = 0, *addrs;
838 addrs = vlib_pci_get_all_dev_addrs ();
840 vec_foreach (addr, addrs)
842 dpdk_device_config_t * devconf = 0;
843 vec_reset_length (pci_addr);
844 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, addr, 0);
847 vlib_pci_free_device_info (d);
850 d = vlib_pci_get_device_info (vm, addr, &error);
853 clib_error_report (error);
857 if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
862 uword * p = hash_get (conf->device_config_index_by_pci_addr, addr->as_u32);
870 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
873 /* Enforce Device blacklist by vendor and device */
874 for (i = 0; i < vec_len (conf->blacklist_by_pci_vendor_and_device); i++)
877 vendor = (u16)(conf->blacklist_by_pci_vendor_and_device[i] >> 16);
878 device = (u16)(conf->blacklist_by_pci_vendor_and_device[i] & 0xFFFF);
879 if (d->vendor_id == vendor && d->device_id == device)
882 * Expected case: device isn't whitelisted,
887 /* Device is blacklisted */
888 pool_get (conf->dev_confs, devconf);
889 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
890 devconf - conf->dev_confs);
891 devconf->pci_addr.as_u32 = addr->as_u32;
892 devconf->is_blacklisted = 1;
895 else /* explicitly whitelisted, ignore the device blacklist */
901 if (d->vendor_id == 0x1af4 &&
902 (d->device_id == VIRTIO_PCI_LEGACY_DEVICEID_NET ||
903 d->device_id == VIRTIO_PCI_MODERN_DEVICEID_NET))
906 else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
909 * For vmxnet3 PCI, unless it is explicitly specified in the whitelist,
910 * the default is to put it in the blacklist.
914 pool_get (conf->dev_confs, devconf);
915 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
916 devconf - conf->dev_confs);
917 devconf->pci_addr.as_u32 = addr->as_u32;
918 devconf->is_blacklisted = 1;
921 /* all Intel network devices */
922 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
924 /* all Intel QAT devices VFs */
925 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
926 (d->device_id == 0x0443 || d->device_id == 0x18a1 || d->device_id == 0x19e3 ||
927 d->device_id == 0x37c9 || d->device_id == 0x6f55))
930 else if (d->vendor_id == 0x1137 &&
931 (d->device_id == 0x0043 || d->device_id == 0x0071))
934 else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
936 /* Amazon Elastic Network Adapter */
937 else if (d->vendor_id == 0x1d0f && d->device_id >= 0xec20 && d->device_id <= 0xec21)
939 /* Cavium Network Adapter */
940 else if (d->vendor_id == 0x177d && d->device_id == 0x9712)
942 /* Cavium FastlinQ QL41000 Series */
943 else if (d->vendor_id == 0x1077 && d->device_id >= 0x8070 && d->device_id <= 0x8090)
946 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1003 && d->device_id <= 0x1004)
951 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1013 && d->device_id <= 0x101a)
955 /* Broadcom NetXtreme S, and E series only */
956 else if (d->vendor_id == 0x14e4 &&
957 ((d->device_id >= 0x16c0 &&
958 d->device_id != 0x16c6 && d->device_id != 0x16c7 &&
959 d->device_id != 0x16dd && d->device_id != 0x16f7 &&
960 d->device_id != 0x16fd && d->device_id != 0x16fe &&
961 d->device_id != 0x170d && d->device_id != 0x170c &&
962 d->device_id != 0x170e && d->device_id != 0x1712 &&
963 d->device_id != 0x1713) ||
964 (d->device_id == 0x1604 || d->device_id == 0x1605 ||
965 d->device_id == 0x1614 || d->device_id == 0x1606 ||
966 d->device_id == 0x1609 || d->device_id == 0x1614)))
970 dpdk_log_warn ("Unsupported PCI device 0x%04x:0x%04x found "
971 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
976 error = vlib_pci_bind_to_uio (vm, addr, (char *) conf->uio_driver_name);
982 pool_get (conf->dev_confs, devconf);
983 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
984 devconf - conf->dev_confs);
985 devconf->pci_addr.as_u32 = addr->as_u32;
987 devconf->is_blacklisted = 1;
988 clib_error_report (error);
993 vlib_pci_free_device_info (d);
997 dpdk_bind_vmbus_devices_to_uio (dpdk_config_main_t * conf)
1000 vlib_vmbus_addr_t *addrs, *addr = 0;
1002 addrs = vlib_vmbus_get_all_dev_addrs ();
1005 vec_foreach (addr, addrs)
1007 error = vlib_vmbus_bind_to_uio (addr);
1011 clib_error_report (error);
1017 static clib_error_t *
1018 dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr,
1019 unformat_input_t * input, u8 is_default)
1021 clib_error_t *error = 0;
1023 dpdk_device_config_t *devconf;
1024 unformat_input_t sub_input;
1028 devconf = &conf->default_devconf;
1032 p = hash_get (conf->device_config_index_by_pci_addr, pci_addr.as_u32);
1036 pool_get (conf->dev_confs, devconf);
1037 hash_set (conf->device_config_index_by_pci_addr, pci_addr.as_u32,
1038 devconf - conf->dev_confs);
1041 return clib_error_return (0,
1042 "duplicate configuration for PCI address %U",
1043 format_vlib_pci_addr, &pci_addr);
1046 devconf->pci_addr.as_u32 = pci_addr.as_u32;
1047 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
1052 unformat_skip_white_space (input);
1053 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1055 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
1057 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
1059 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
1061 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
1063 else if (unformat (input, "name %s", &devconf->name))
1065 else if (unformat (input, "workers %U", unformat_bitmap_list,
1070 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
1072 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
1076 else if (unformat (input, "vlan-strip-offload off"))
1077 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
1078 else if (unformat (input, "vlan-strip-offload on"))
1079 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
1080 else if (unformat (input, "tso on"))
1082 devconf->tso = DPDK_DEVICE_TSO_ON;
1084 else if (unformat (input, "tso off"))
1086 devconf->tso = DPDK_DEVICE_TSO_OFF;
1088 else if (unformat (input, "devargs %s", &devconf->devargs))
1092 error = clib_error_return (0, "unknown input `%U'",
1093 format_unformat_error, input);
1101 if (devconf->workers && devconf->num_rx_queues == 0)
1102 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
1103 else if (devconf->workers &&
1104 clib_bitmap_count_set_bits (devconf->workers) !=
1105 devconf->num_rx_queues)
1107 clib_error_return (0,
1108 "%U: number of worker threads must be "
1109 "equal to number of rx queues", format_vlib_pci_addr,
1115 static clib_error_t *
1116 dpdk_log_read_ready (clib_file_t * uf)
1118 unformat_input_t input;
1125 uword len = vec_len (s);
1126 vec_resize (s, len + n_try);
1128 n = read (uf->file_descriptor, s + len, n_try);
1129 if (n < 0 && errno != EAGAIN)
1130 return clib_error_return_unix (0, "read");
1131 _vec_len (s) = len + (n < 0 ? 0 : n);
1134 unformat_init_vector (&input, s);
1136 while (unformat_user (&input, unformat_line, &line))
1138 dpdk_log_notice ("%v", line);
1142 unformat_free (&input);
1146 static clib_error_t *
1147 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
1149 clib_error_t *error = 0;
1150 dpdk_config_main_t *conf = &dpdk_config_main;
1151 vlib_thread_main_t *tm = vlib_get_thread_main ();
1152 dpdk_device_config_t *devconf;
1153 vlib_pci_addr_t pci_addr;
1154 unformat_input_t sub_input;
1155 uword default_hugepage_sz, x;
1158 int num_whitelisted = 0;
1163 u8 *huge_dir_path = 0;
1167 format (0, "%s/hugepages%c", vlib_unix_get_runtime_dir (), 0);
1169 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
1171 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1173 /* Prime the pump */
1174 if (unformat (input, "no-hugetlb"))
1176 vec_add1 (conf->eal_init_args, (u8 *) "--no-huge");
1179 else if (unformat (input, "enable-tcp-udp-checksum"))
1180 conf->enable_tcp_udp_checksum = 1;
1182 else if (unformat (input, "no-tx-checksum-offload"))
1183 conf->no_tx_checksum_offload = 1;
1185 else if (unformat (input, "decimal-interface-names"))
1186 conf->interface_name_format_decimal = 1;
1188 else if (unformat (input, "no-multi-seg"))
1189 conf->no_multi_seg = 1;
1191 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
1195 dpdk_device_config (conf, (vlib_pci_addr_t) (u32) ~ 1, &sub_input,
1203 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
1204 unformat_vlib_cli_sub_input, &sub_input))
1206 error = dpdk_device_config (conf, pci_addr, &sub_input, 0);
1213 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
1215 error = dpdk_device_config (conf, pci_addr, 0, 0);
1222 else if (unformat (input, "num-mem-channels %d", &conf->nchannels))
1223 conf->nchannels_set_manually = 0;
1224 else if (unformat (input, "num-crypto-mbufs %d",
1225 &conf->num_crypto_mbufs))
1227 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
1229 else if (unformat (input, "socket-mem %s", &socket_mem))
1231 else if (unformat (input, "no-pci"))
1234 tmp = format (0, "--no-pci%c", 0);
1235 vec_add1 (conf->eal_init_args, tmp);
1237 else if (unformat (input, "blacklist %x:%x", &vendor, &device))
1239 u32 blacklist_entry;
1240 if (vendor > 0xFFFF)
1241 return clib_error_return (0, "blacklist PCI vendor out of range");
1242 if (device > 0xFFFF)
1243 return clib_error_return (0, "blacklist PCI device out of range");
1244 blacklist_entry = (vendor << 16) | (device & 0xffff);
1245 vec_add1 (conf->blacklist_by_pci_vendor_and_device,
1248 else if (unformat (input, "no-vmbus"))
1251 tmp = format (0, "--no-vmbus%c", 0);
1252 vec_add1 (conf->eal_init_args, tmp);
1256 else if (unformat(input, #a)) \
1258 tmp = format (0, "--%s%c", #a, 0); \
1259 vec_add1 (conf->eal_init_args, tmp); \
1261 foreach_eal_double_hyphen_predicate_arg
1264 else if (unformat(input, #a " %s", &s)) \
1266 if (!strncmp(#a, "file-prefix", 11)) \
1268 tmp = format (0, "--%s%c", #a, 0); \
1269 vec_add1 (conf->eal_init_args, tmp); \
1271 if (!strncmp(#a, "vdev", 4)) \
1272 if (strstr((char*)s, "af_packet")) \
1273 clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
1274 vec_add1 (conf->eal_init_args, s); \
1276 foreach_eal_double_hyphen_arg
1279 else if (unformat(input, #a " %s", &s)) \
1281 tmp = format (0, "-%s%c", #b, 0); \
1282 vec_add1 (conf->eal_init_args, tmp); \
1284 vec_add1 (conf->eal_init_args, s); \
1286 foreach_eal_single_hyphen_arg
1289 else if (unformat(input, #a " %s", &s)) \
1291 tmp = format (0, "-%s%c", #b, 0); \
1292 vec_add1 (conf->eal_init_args, tmp); \
1294 vec_add1 (conf->eal_init_args, s); \
1295 conf->a##_set_manually = 1; \
1297 foreach_eal_single_hyphen_mandatory_arg
1299 else if (unformat (input, "default"))
1302 else if (unformat_skip_white_space (input))
1306 error = clib_error_return (0, "unknown input `%U'",
1307 format_unformat_error, input);
1312 if (!conf->uio_driver_name)
1313 conf->uio_driver_name = format (0, "auto%c", 0);
1315 default_hugepage_sz = clib_mem_get_default_hugepage_size ();
1318 clib_bitmap_foreach (x, tm->cpu_socket_bitmap, (
1322 /* preallocate at least 16MB of hugepages per socket,
1323 if more is needed it is up to consumer to preallocate more */
1324 n_pages = round_pow2 ((uword) 16 << 20, default_hugepage_sz);
1325 n_pages /= default_hugepage_sz;
1327 if ((e = clib_sysfs_prealloc_hugepages(x, 0, n_pages)))
1328 clib_error_report (e);
1334 tmp = format (0, "--file-prefix%c", 0);
1335 vec_add1 (conf->eal_init_args, tmp);
1336 tmp = format (0, "vpp%c", 0);
1337 vec_add1 (conf->eal_init_args, tmp);
1343 /* I'll bet that -c and -n must be the first and second args... */
1344 if (!conf->coremask_set_manually)
1346 vlib_thread_registration_t *tr;
1347 uword *coremask = 0;
1350 /* main thread core */
1351 coremask = clib_bitmap_set (coremask, tm->main_lcore, 1);
1353 for (i = 0; i < vec_len (tm->registrations); i++)
1355 tr = tm->registrations[i];
1356 coremask = clib_bitmap_or (coremask, tr->coremask);
1359 vec_insert (conf->eal_init_args, 2, 1);
1360 conf->eal_init_args[1] = (u8 *) "-c";
1361 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1362 conf->eal_init_args[2] = tmp;
1363 clib_bitmap_free (coremask);
1366 if (!conf->nchannels_set_manually)
1368 vec_insert (conf->eal_init_args, 2, 3);
1369 conf->eal_init_args[3] = (u8 *) "-n";
1370 tmp = format (0, "%d", conf->nchannels);
1371 vec_terminate_c_string (tmp);
1372 conf->eal_init_args[4] = tmp;
1375 if (no_pci == 0 && geteuid () == 0)
1376 dpdk_bind_devices_to_uio (conf);
1378 if (no_vmbus == 0 && geteuid () == 0)
1379 dpdk_bind_vmbus_devices_to_uio (conf);
1382 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1383 devconf->x = conf->default_devconf.x ;
1386 pool_foreach (devconf, conf->dev_confs, ({
1388 /* default per-device config items */
1389 foreach_dpdk_device_config_item
1391 /* copy vlan_strip config from default device */
1392 if (devconf->vlan_strip_offload == 0 &&
1393 conf->default_devconf.vlan_strip_offload > 0)
1394 devconf->vlan_strip_offload =
1395 conf->default_devconf.vlan_strip_offload;
1397 /* copy tso config from default device */
1400 /* copy tso config from default device */
1403 /* add DPDK EAL whitelist/blacklist entry */
1404 if (num_whitelisted > 0 && devconf->is_blacklisted == 0)
1406 tmp = format (0, "-w%c", 0);
1407 vec_add1 (conf->eal_init_args, tmp);
1408 if (devconf->devargs)
1410 tmp = format (0, "%U,%s", format_vlib_pci_addr, &devconf->pci_addr, devconf->devargs, 0);
1414 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1416 vec_add1 (conf->eal_init_args, tmp);
1418 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0)
1420 tmp = format (0, "-b%c", 0);
1421 vec_add1 (conf->eal_init_args, tmp);
1422 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1423 vec_add1 (conf->eal_init_args, tmp);
1430 /* set master-lcore */
1431 tmp = format (0, "--master-lcore%c", 0);
1432 vec_add1 (conf->eal_init_args, tmp);
1433 tmp = format (0, "%u%c", tm->main_lcore, 0);
1434 vec_add1 (conf->eal_init_args, tmp);
1438 clib_warning ("socket-mem argument is deprecated");
1440 /* NULL terminate the "argv" vector, in case of stupidity */
1441 vec_add1 (conf->eal_init_args, 0);
1442 _vec_len (conf->eal_init_args) -= 1;
1444 /* Set up DPDK eal and packet mbuf pool early. */
1446 int log_fds[2] = { 0 };
1447 if (pipe (log_fds) == 0)
1449 if (fcntl (log_fds[1], F_SETFL, O_NONBLOCK) == 0)
1451 FILE *f = fdopen (log_fds[1], "a");
1452 if (f && rte_openlog_stream (f) == 0)
1454 clib_file_t t = { 0 };
1455 t.read_function = dpdk_log_read_ready;
1456 t.file_descriptor = log_fds[0];
1457 t.description = format (0, "DPDK logging pipe");
1458 clib_file_add (&file_main, &t);
1468 vm = vlib_get_main ();
1470 /* make copy of args as rte_eal_init tends to mess up with arg array */
1471 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1472 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1473 conf->eal_init_args[i]);
1475 vec_terminate_c_string (conf->eal_init_args_str);
1477 dpdk_log_warn ("EAL init args: %s", conf->eal_init_args_str);
1478 ret = rte_eal_init (vec_len (conf->eal_init_args),
1479 (char **) conf->eal_init_args);
1481 /* lazy umount hugepages */
1482 umount2 ((char *) huge_dir_path, MNT_DETACH);
1483 rmdir ((char *) huge_dir_path);
1484 vec_free (huge_dir_path);
1487 return clib_error_return (0, "rte_eal_init returned %d", ret);
1489 /* main thread 1st */
1490 if ((error = dpdk_buffer_pools_create (vm)))
1497 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1500 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1502 vnet_main_t *vnm = vnet_get_main ();
1503 struct rte_eth_link prev_link = xd->link;
1505 u8 hw_flags_chg = 0;
1507 /* only update link state for PMD interfaces */
1508 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
1511 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1512 clib_memset (&xd->link, 0, sizeof (xd->link));
1513 rte_eth_link_get_nowait (xd->port_id, &xd->link);
1515 if (LINK_STATE_ELOGS)
1517 vlib_main_t *vm = vlib_get_main ();
1518 ELOG_TYPE_DECLARE (e) =
1521 "update-link-state: sw_if_index %d, admin_up %d,"
1522 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1531 ed = ELOG_DATA (&vm->elog_main, e);
1532 ed->sw_if_index = xd->sw_if_index;
1533 ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1534 ed->old_link_state = (u8)
1535 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
1536 ed->new_link_state = (u8) xd->link.link_status;
1539 if ((xd->link.link_duplex != prev_link.link_duplex))
1542 switch (xd->link.link_duplex)
1544 case ETH_LINK_HALF_DUPLEX:
1545 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1547 case ETH_LINK_FULL_DUPLEX:
1548 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1554 if (xd->link.link_speed != prev_link.link_speed)
1555 vnet_hw_interface_set_link_speed (vnm, xd->hw_if_index,
1556 xd->link.link_speed * 1000);
1558 if (xd->link.link_status != prev_link.link_status)
1562 if (xd->link.link_status)
1563 hw_flags |= VNET_HW_INTERFACE_FLAG_LINK_UP;
1568 if (LINK_STATE_ELOGS)
1570 vlib_main_t *vm = vlib_get_main ();
1572 ELOG_TYPE_DECLARE (e) =
1575 "update-link-state: sw_if_index %d, new flags %d",.format_args
1583 ed = ELOG_DATA (&vm->elog_main, e);
1584 ed->sw_if_index = xd->sw_if_index;
1585 ed->flags = hw_flags;
1587 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, hw_flags);
1592 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1594 clib_error_t *error;
1595 dpdk_main_t *dm = &dpdk_main;
1597 vlib_thread_main_t *tm = vlib_get_thread_main ();
1599 error = dpdk_lib_init (dm);
1602 clib_error_report (error);
1604 tm->worker_thread_release = 1;
1606 f64 now = vlib_time_now (vm);
1607 vec_foreach (xd, dm->devices)
1609 dpdk_update_link_state (xd, now);
1615 * check each time through the loop in case intervals are changed
1617 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1618 dm->link_state_poll_interval : dm->stat_poll_interval;
1620 vlib_process_wait_for_event_or_clock (vm, min_wait);
1622 if (dm->admin_up_down_in_progress)
1623 /* skip the poll if an admin up down is in progress (on any interface) */
1626 vec_foreach (xd, dm->devices)
1628 f64 now = vlib_time_now (vm);
1629 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1630 dpdk_update_counters (xd, now);
1631 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1632 dpdk_update_link_state (xd, now);
1641 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1642 .function = dpdk_process,
1643 .type = VLIB_NODE_TYPE_PROCESS,
1644 .name = "dpdk-process",
1645 .process_log2_n_stack_bytes = 17,
1649 static clib_error_t *
1650 dpdk_init (vlib_main_t * vm)
1652 dpdk_main_t *dm = &dpdk_main;
1653 clib_error_t *error = 0;
1655 /* verify that structs are cacheline aligned */
1656 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1657 "Cache line marker must be 1st element in dpdk_device_t");
1658 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1659 CLIB_CACHE_LINE_BYTES,
1660 "Data in cache line 0 is bigger than cache line size");
1661 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1662 "Cache line marker must be 1st element in frame_queue_trace_t");
1663 STATIC_ASSERT (RTE_CACHE_LINE_SIZE == 1 << CLIB_LOG2_CACHE_LINE_BYTES,
1664 "DPDK RTE CACHE LINE SIZE does not match with 1<<CLIB_LOG2_CACHE_LINE_BYTES");
1666 dpdk_cli_reference ();
1669 dm->vnet_main = vnet_get_main ();
1670 dm->conf = &dpdk_config_main;
1672 dm->conf->nchannels = 4;
1673 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1674 vec_add1 (dm->conf->eal_init_args, (u8 *) "--in-memory");
1676 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1677 dm->buffer_flags_template = (VLIB_BUFFER_TOTAL_LENGTH_VALID |
1678 VLIB_BUFFER_EXT_HDR_VALID |
1679 VNET_BUFFER_F_L4_CHECKSUM_COMPUTED |
1680 VNET_BUFFER_F_L4_CHECKSUM_CORRECT);
1682 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1683 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1685 dm->log_default = vlib_log_register_class ("dpdk", 0);
1690 VLIB_INIT_FUNCTION (dpdk_init);
1693 * fd.io coding-style-patch-verification: ON
1696 * eval: (c-set-style "gnu")