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;
498 case VNET_DPDK_PMD_THUNDERX:
499 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
501 if (dm->conf->no_tx_checksum_offload == 0)
503 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
504 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
505 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD;
509 case VNET_DPDK_PMD_ENA:
510 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
511 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
514 case VNET_DPDK_PMD_DPAA2:
515 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
519 case VNET_DPDK_PMD_ENIC:
520 xd->port_type = port_type_from_link_speed (l.link_speed);
521 if (dm->conf->enable_tcp_udp_checksum)
522 dpdk_enable_l4_csum_offload (xd);
525 /* Intel Red Rock Canyon */
526 case VNET_DPDK_PMD_FM10K:
527 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
531 case VNET_DPDK_PMD_VIRTIO:
532 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_NONE;
533 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
534 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
535 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
539 case VNET_DPDK_PMD_VMXNET3:
540 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
541 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
544 case VNET_DPDK_PMD_AF_PACKET:
545 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
546 xd->af_packet_instance_num = af_packet_instance_num++;
549 case VNET_DPDK_PMD_VIRTIO_USER:
550 xd->port_type = VNET_DPDK_PORT_TYPE_VIRTIO_USER;
553 case VNET_DPDK_PMD_VHOST_ETHER:
554 xd->port_type = VNET_DPDK_PORT_TYPE_VHOST_ETHER;
557 case VNET_DPDK_PMD_LIOVF_ETHER:
558 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
561 case VNET_DPDK_PMD_FAILSAFE:
562 xd->port_type = VNET_DPDK_PORT_TYPE_FAILSAFE;
563 xd->port_conf.intr_conf.lsc = 1;
566 case VNET_DPDK_PMD_NETVSC:
567 xd->port_type = port_type_from_link_speed (l.link_speed);
571 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
574 if (devconf->num_rx_desc)
575 xd->nb_rx_desc = devconf->num_rx_desc;
578 /* If num_rx_desc is not specified by VPP user, the current CPU is working
579 with 2M page and has no L3 cache, default num_rx_desc is changed to 512
580 from original 1024 to help reduce TLB misses.
582 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
583 && check_l3cache() == 0)
584 xd->nb_rx_desc = 512;
587 if (devconf->num_tx_desc)
588 xd->nb_tx_desc = devconf->num_tx_desc;
591 /* If num_tx_desc is not specified by VPP user, the current CPU is working
592 with 2M page and has no L3 cache, default num_tx_desc is changed to 512
593 from original 1024 to help reduce TLB misses.
595 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
596 && check_l3cache() == 0)
597 xd->nb_tx_desc = 512;
601 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
603 f64 now = vlib_time_now (vm);
605 rnd = (u32) (now * 1e6);
606 rnd = random_u32 (&rnd);
607 clib_memcpy (addr + 2, &rnd, sizeof (rnd));
612 rte_eth_macaddr_get (i, (void *) addr);
614 if (xd->tx_q_used < tm->n_vlib_mains)
615 dpdk_device_lock_init (xd);
618 xd->device_index = xd - dm->devices;
619 xd->per_interface_next_index = ~0;
621 /* assign interface to input thread */
625 error = ethernet_register_interface
626 (dm->vnet_main, dpdk_device_class.index, xd->device_index,
627 /* ethernet address */ addr,
628 &xd->hw_if_index, dpdk_flag_change);
633 * Ensure default mtu is not > the mtu read from the hardware.
634 * Otherwise rte_eth_dev_configure() will fail and the port will
636 * Calculate max_frame_size and mtu supported by NIC
638 if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
641 * This device does not support the platforms's max frame
642 * size. Use it's advertised mru instead.
644 max_rx_frame = dev_info.max_rx_pktlen;
645 mtu = dev_info.max_rx_pktlen - sizeof (ethernet_header_t);
649 /* VPP treats MTU and max_rx_pktlen both equal to
650 * ETHERNET_MAX_PACKET_BYTES, if dev_info.max_rx_pktlen >=
651 * ETHERNET_MAX_PACKET_BYTES + sizeof(ethernet_header_t)
653 if (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
654 sizeof (ethernet_header_t)))
656 mtu = ETHERNET_MAX_PACKET_BYTES;
657 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
660 * Some platforms do not account for Ethernet FCS (4 bytes) in
661 * MTU calculations. To interop with them increase mru but only
662 * if the device's settings can support it.
664 if (dpdk_port_crc_strip_enabled (xd) &&
665 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
666 sizeof (ethernet_header_t) +
674 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
675 mtu = ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
677 if (dpdk_port_crc_strip_enabled (xd) &&
678 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)))
685 if (xd->pmd == VNET_DPDK_PMD_FAILSAFE)
687 /* failsafe device numerables are reported with active device only,
688 * need to query the mtu for current device setup to overwrite
692 if (!rte_eth_dev_get_mtu (i, &dev_mtu))
695 max_rx_frame = mtu + sizeof (ethernet_header_t);
697 if (dpdk_port_crc_strip_enabled (xd))
704 /*Set port rxmode config */
705 xd->port_conf.rxmode.max_rx_pkt_len = max_rx_frame;
707 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->hw_if_index);
708 xd->sw_if_index = sw->sw_if_index;
709 vnet_hw_interface_set_input_node (dm->vnet_main, xd->hw_if_index,
710 dpdk_input_node.index);
712 if (devconf->workers)
716 clib_bitmap_foreach (i, devconf->workers, ({
717 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q++,
718 vdm->first_worker_thread_index + i);
722 for (q = 0; q < xd->rx_q_used; q++)
724 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q, /* any */
728 /*Get vnet hardware interface */
729 hi = vnet_get_hw_interface (dm->vnet_main, xd->hw_if_index);
731 /*Override default max_packet_bytes and max_supported_bytes set in
732 * ethernet_register_interface() above*/
735 hi->max_packet_bytes = mtu;
736 hi->max_supported_packet_bytes = max_rx_frame;
737 hi->numa_node = xd->cpu_socket;
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 if (vec_len (xd->errors))
762 dpdk_log_err ("setup failed for device %U. Errors:\n %U",
763 format_dpdk_device_name, i,
764 format_dpdk_device_errors, xd);
767 * A note on Cisco VIC (PMD_ENIC) and VLAN:
769 * With Cisco VIC vNIC, every ingress packet is tagged. On a
770 * trunk vNIC (C series "standalone" server), packets on no VLAN
771 * are tagged with vlan 0. On an access vNIC (standalone or B
772 * series "blade" server), packets on the default/native VLAN
773 * are tagged with that vNIC's VLAN. VPP expects these packets
774 * to be untagged, and previously enabled VLAN strip on VIC by
775 * default. But it also broke vlan sub-interfaces.
777 * The VIC adapter has "untag default vlan" ingress VLAN rewrite
778 * mode, which removes tags from these packets. VPP now includes
779 * a local patch for the enic driver to use this untag mode, so
780 * enabling vlan stripping is no longer needed. In future, the
781 * driver + dpdk will have an API to set the mode after
782 * rte_eal_init. Then, this note and local patch will be
787 * VLAN stripping: default to VLAN strip disabled, unless specified
788 * otherwise in the startup config.
791 vlan_off = rte_eth_dev_get_vlan_offload (xd->port_id);
792 if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
794 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
795 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
796 dpdk_log_info ("VLAN strip enabled for interface\n");
798 dpdk_log_warn ("VLAN strip cannot be supported by interface\n");
799 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_VLAN_STRIP;
803 if (vlan_off & ETH_VLAN_STRIP_OFFLOAD)
805 vlan_off &= ~ETH_VLAN_STRIP_OFFLOAD;
806 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
807 dpdk_log_warn ("set VLAN offload failed\n");
809 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP;
813 hi->max_packet_bytes = xd->port_conf.rxmode.max_rx_pkt_len
814 - sizeof (ethernet_header_t);
816 dpdk_log_warn ("hi NULL");
818 if (dm->conf->no_multi_seg)
819 mtu = mtu > ETHER_MAX_LEN ? ETHER_MAX_LEN : mtu;
821 rte_eth_dev_set_mtu (xd->port_id, mtu);
829 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
831 vlib_main_t *vm = vlib_get_main ();
834 int num_whitelisted = vec_len (conf->dev_confs);
835 vlib_pci_device_info_t *d = 0;
836 vlib_pci_addr_t *addr = 0, *addrs;
839 addrs = vlib_pci_get_all_dev_addrs ();
841 vec_foreach (addr, addrs)
843 dpdk_device_config_t * devconf = 0;
844 vec_reset_length (pci_addr);
845 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, addr, 0);
848 vlib_pci_free_device_info (d);
851 d = vlib_pci_get_device_info (vm, addr, &error);
854 clib_error_report (error);
858 if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
863 uword * p = hash_get (conf->device_config_index_by_pci_addr, addr->as_u32);
871 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
874 /* Enforce Device blacklist by vendor and device */
875 for (i = 0; i < vec_len (conf->blacklist_by_pci_vendor_and_device); i++)
878 vendor = (u16)(conf->blacklist_by_pci_vendor_and_device[i] >> 16);
879 device = (u16)(conf->blacklist_by_pci_vendor_and_device[i] & 0xFFFF);
880 if (d->vendor_id == vendor && d->device_id == device)
883 * Expected case: device isn't whitelisted,
888 /* Device is blacklisted */
889 pool_get (conf->dev_confs, devconf);
890 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
891 devconf - conf->dev_confs);
892 devconf->pci_addr.as_u32 = addr->as_u32;
893 devconf->is_blacklisted = 1;
896 else /* explicitly whitelisted, ignore the device blacklist */
902 if (d->vendor_id == 0x1af4 &&
903 (d->device_id == VIRTIO_PCI_LEGACY_DEVICEID_NET ||
904 d->device_id == VIRTIO_PCI_MODERN_DEVICEID_NET))
907 else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
910 * For vmxnet3 PCI, unless it is explicitly specified in the whitelist,
911 * the default is to put it in the blacklist.
915 pool_get (conf->dev_confs, devconf);
916 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
917 devconf - conf->dev_confs);
918 devconf->pci_addr.as_u32 = addr->as_u32;
919 devconf->is_blacklisted = 1;
922 /* all Intel network devices */
923 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
925 /* all Intel QAT devices VFs */
926 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
927 (d->device_id == 0x0443 || d->device_id == 0x18a1 || d->device_id == 0x19e3 ||
928 d->device_id == 0x37c9 || d->device_id == 0x6f55))
931 else if (d->vendor_id == 0x1137 &&
932 (d->device_id == 0x0043 || d->device_id == 0x0071))
935 else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
937 /* Amazon Elastic Network Adapter */
938 else if (d->vendor_id == 0x1d0f && d->device_id >= 0xec20 && d->device_id <= 0xec21)
940 /* Cavium Network Adapter */
941 else if (d->vendor_id == 0x177d && d->device_id == 0x9712)
943 /* Cavium FastlinQ QL41000 Series */
944 else if (d->vendor_id == 0x1077 && d->device_id >= 0x8070 && d->device_id <= 0x8090)
946 /* Mellanox CX3, CX3VF */
947 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1003 && d->device_id <= 0x1004)
951 /* Mellanox CX4, CX4VF, CX4LX, CX4LXVF, CX5, CX5VF, CX5EX, CX5EXVF */
952 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1013 && d->device_id <= 0x101a)
956 /* Mellanox CX6, CX6VF, CX6DX, CX6DXVF */
957 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x101b && d->device_id <= 0x101e)
961 /* Broadcom NetXtreme S, and E series only */
962 else if (d->vendor_id == 0x14e4 &&
963 ((d->device_id >= 0x16c0 &&
964 d->device_id != 0x16c6 && d->device_id != 0x16c7 &&
965 d->device_id != 0x16dd && d->device_id != 0x16f7 &&
966 d->device_id != 0x16fd && d->device_id != 0x16fe &&
967 d->device_id != 0x170d && d->device_id != 0x170c &&
968 d->device_id != 0x170e && d->device_id != 0x1712 &&
969 d->device_id != 0x1713) ||
970 (d->device_id == 0x1604 || d->device_id == 0x1605 ||
971 d->device_id == 0x1614 || d->device_id == 0x1606 ||
972 d->device_id == 0x1609 || d->device_id == 0x1614)))
976 dpdk_log_warn ("Unsupported PCI device 0x%04x:0x%04x found "
977 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
982 error = vlib_pci_bind_to_uio (vm, addr, (char *) conf->uio_driver_name);
988 pool_get (conf->dev_confs, devconf);
989 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
990 devconf - conf->dev_confs);
991 devconf->pci_addr.as_u32 = addr->as_u32;
993 devconf->is_blacklisted = 1;
994 clib_error_report (error);
999 vlib_pci_free_device_info (d);
1003 dpdk_bind_vmbus_devices_to_uio (dpdk_config_main_t * conf)
1005 clib_error_t *error;
1006 vlib_vmbus_addr_t *addrs, *addr = 0;
1008 addrs = vlib_vmbus_get_all_dev_addrs ();
1011 vec_foreach (addr, addrs)
1013 error = vlib_vmbus_bind_to_uio (addr);
1017 clib_error_report (error);
1023 static clib_error_t *
1024 dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr,
1025 unformat_input_t * input, u8 is_default)
1027 clib_error_t *error = 0;
1029 dpdk_device_config_t *devconf;
1030 unformat_input_t sub_input;
1034 devconf = &conf->default_devconf;
1038 p = hash_get (conf->device_config_index_by_pci_addr, pci_addr.as_u32);
1042 pool_get (conf->dev_confs, devconf);
1043 hash_set (conf->device_config_index_by_pci_addr, pci_addr.as_u32,
1044 devconf - conf->dev_confs);
1047 return clib_error_return (0,
1048 "duplicate configuration for PCI address %U",
1049 format_vlib_pci_addr, &pci_addr);
1052 devconf->pci_addr.as_u32 = pci_addr.as_u32;
1053 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
1058 unformat_skip_white_space (input);
1059 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1061 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
1063 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
1065 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
1067 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
1069 else if (unformat (input, "name %s", &devconf->name))
1071 else if (unformat (input, "workers %U", unformat_bitmap_list,
1076 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
1078 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
1082 else if (unformat (input, "vlan-strip-offload off"))
1083 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
1084 else if (unformat (input, "vlan-strip-offload on"))
1085 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
1086 else if (unformat (input, "tso on"))
1088 devconf->tso = DPDK_DEVICE_TSO_ON;
1090 else if (unformat (input, "tso off"))
1092 devconf->tso = DPDK_DEVICE_TSO_OFF;
1094 else if (unformat (input, "devargs %s", &devconf->devargs))
1098 error = clib_error_return (0, "unknown input `%U'",
1099 format_unformat_error, input);
1107 if (devconf->workers && devconf->num_rx_queues == 0)
1108 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
1109 else if (devconf->workers &&
1110 clib_bitmap_count_set_bits (devconf->workers) !=
1111 devconf->num_rx_queues)
1113 clib_error_return (0,
1114 "%U: number of worker threads must be "
1115 "equal to number of rx queues", format_vlib_pci_addr,
1121 static clib_error_t *
1122 dpdk_log_read_ready (clib_file_t * uf)
1124 unformat_input_t input;
1131 uword len = vec_len (s);
1132 vec_resize (s, len + n_try);
1134 n = read (uf->file_descriptor, s + len, n_try);
1135 if (n < 0 && errno != EAGAIN)
1136 return clib_error_return_unix (0, "read");
1137 _vec_len (s) = len + (n < 0 ? 0 : n);
1140 unformat_init_vector (&input, s);
1142 while (unformat_user (&input, unformat_line, &line))
1144 dpdk_log_notice ("%v", line);
1148 unformat_free (&input);
1152 static clib_error_t *
1153 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
1155 clib_error_t *error = 0;
1156 dpdk_config_main_t *conf = &dpdk_config_main;
1157 vlib_thread_main_t *tm = vlib_get_thread_main ();
1158 dpdk_device_config_t *devconf;
1159 vlib_pci_addr_t pci_addr;
1160 unformat_input_t sub_input;
1161 uword default_hugepage_sz, x;
1164 int num_whitelisted = 0;
1169 u8 *huge_dir_path = 0;
1173 format (0, "%s/hugepages%c", vlib_unix_get_runtime_dir (), 0);
1175 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
1177 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1179 /* Prime the pump */
1180 if (unformat (input, "no-hugetlb"))
1182 vec_add1 (conf->eal_init_args, (u8 *) "--no-huge");
1185 else if (unformat (input, "enable-tcp-udp-checksum"))
1186 conf->enable_tcp_udp_checksum = 1;
1188 else if (unformat (input, "no-tx-checksum-offload"))
1189 conf->no_tx_checksum_offload = 1;
1191 else if (unformat (input, "decimal-interface-names"))
1192 conf->interface_name_format_decimal = 1;
1194 else if (unformat (input, "no-multi-seg"))
1195 conf->no_multi_seg = 1;
1197 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
1201 dpdk_device_config (conf, (vlib_pci_addr_t) (u32) ~ 1, &sub_input,
1209 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
1210 unformat_vlib_cli_sub_input, &sub_input))
1212 error = dpdk_device_config (conf, pci_addr, &sub_input, 0);
1219 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
1221 error = dpdk_device_config (conf, pci_addr, 0, 0);
1228 else if (unformat (input, "num-mem-channels %d", &conf->nchannels))
1229 conf->nchannels_set_manually = 0;
1230 else if (unformat (input, "num-crypto-mbufs %d",
1231 &conf->num_crypto_mbufs))
1233 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
1235 else if (unformat (input, "socket-mem %s", &socket_mem))
1237 else if (unformat (input, "no-pci"))
1240 tmp = format (0, "--no-pci%c", 0);
1241 vec_add1 (conf->eal_init_args, tmp);
1243 else if (unformat (input, "blacklist %x:%x", &vendor, &device))
1245 u32 blacklist_entry;
1246 if (vendor > 0xFFFF)
1247 return clib_error_return (0, "blacklist PCI vendor out of range");
1248 if (device > 0xFFFF)
1249 return clib_error_return (0, "blacklist PCI device out of range");
1250 blacklist_entry = (vendor << 16) | (device & 0xffff);
1251 vec_add1 (conf->blacklist_by_pci_vendor_and_device,
1254 else if (unformat (input, "no-vmbus"))
1257 tmp = format (0, "--no-vmbus%c", 0);
1258 vec_add1 (conf->eal_init_args, tmp);
1262 else if (unformat(input, #a)) \
1264 tmp = format (0, "--%s%c", #a, 0); \
1265 vec_add1 (conf->eal_init_args, tmp); \
1267 foreach_eal_double_hyphen_predicate_arg
1270 else if (unformat(input, #a " %s", &s)) \
1272 if (!strncmp(#a, "file-prefix", 11)) \
1274 tmp = format (0, "--%s%c", #a, 0); \
1275 vec_add1 (conf->eal_init_args, tmp); \
1277 if (!strncmp(#a, "vdev", 4)) \
1278 if (strstr((char*)s, "af_packet")) \
1279 clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
1280 vec_add1 (conf->eal_init_args, s); \
1282 foreach_eal_double_hyphen_arg
1285 else if (unformat(input, #a " %s", &s)) \
1287 tmp = format (0, "-%s%c", #b, 0); \
1288 vec_add1 (conf->eal_init_args, tmp); \
1290 vec_add1 (conf->eal_init_args, s); \
1292 foreach_eal_single_hyphen_arg
1295 else if (unformat(input, #a " %s", &s)) \
1297 tmp = format (0, "-%s%c", #b, 0); \
1298 vec_add1 (conf->eal_init_args, tmp); \
1300 vec_add1 (conf->eal_init_args, s); \
1301 conf->a##_set_manually = 1; \
1303 foreach_eal_single_hyphen_mandatory_arg
1305 else if (unformat (input, "default"))
1308 else if (unformat_skip_white_space (input))
1312 error = clib_error_return (0, "unknown input `%U'",
1313 format_unformat_error, input);
1318 if (!conf->uio_driver_name)
1319 conf->uio_driver_name = format (0, "auto%c", 0);
1321 default_hugepage_sz = clib_mem_get_default_hugepage_size ();
1324 clib_bitmap_foreach (x, tm->cpu_socket_bitmap, (
1328 /* preallocate at least 16MB of hugepages per socket,
1329 if more is needed it is up to consumer to preallocate more */
1330 n_pages = round_pow2 ((uword) 16 << 20, default_hugepage_sz);
1331 n_pages /= default_hugepage_sz;
1333 if ((e = clib_sysfs_prealloc_hugepages(x, 0, n_pages)))
1334 clib_error_report (e);
1340 tmp = format (0, "--file-prefix%c", 0);
1341 vec_add1 (conf->eal_init_args, tmp);
1342 tmp = format (0, "vpp%c", 0);
1343 vec_add1 (conf->eal_init_args, tmp);
1349 /* I'll bet that -c and -n must be the first and second args... */
1350 if (!conf->coremask_set_manually)
1352 vlib_thread_registration_t *tr;
1353 uword *coremask = 0;
1356 /* main thread core */
1357 coremask = clib_bitmap_set (coremask, tm->main_lcore, 1);
1359 for (i = 0; i < vec_len (tm->registrations); i++)
1361 tr = tm->registrations[i];
1362 coremask = clib_bitmap_or (coremask, tr->coremask);
1365 vec_insert (conf->eal_init_args, 2, 1);
1366 conf->eal_init_args[1] = (u8 *) "-c";
1367 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1368 conf->eal_init_args[2] = tmp;
1369 clib_bitmap_free (coremask);
1372 if (!conf->nchannels_set_manually)
1374 vec_insert (conf->eal_init_args, 2, 3);
1375 conf->eal_init_args[3] = (u8 *) "-n";
1376 tmp = format (0, "%d", conf->nchannels);
1377 vec_terminate_c_string (tmp);
1378 conf->eal_init_args[4] = tmp;
1381 if (no_pci == 0 && geteuid () == 0)
1382 dpdk_bind_devices_to_uio (conf);
1384 if (no_vmbus == 0 && geteuid () == 0)
1385 dpdk_bind_vmbus_devices_to_uio (conf);
1388 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1389 devconf->x = conf->default_devconf.x ;
1392 pool_foreach (devconf, conf->dev_confs, ({
1394 /* default per-device config items */
1395 foreach_dpdk_device_config_item
1397 /* copy vlan_strip config from default device */
1398 if (devconf->vlan_strip_offload == 0 &&
1399 conf->default_devconf.vlan_strip_offload > 0)
1400 devconf->vlan_strip_offload =
1401 conf->default_devconf.vlan_strip_offload;
1403 /* copy tso config from default device */
1406 /* copy tso config from default device */
1409 /* add DPDK EAL whitelist/blacklist entry */
1410 if (num_whitelisted > 0 && devconf->is_blacklisted == 0)
1412 tmp = format (0, "-w%c", 0);
1413 vec_add1 (conf->eal_init_args, tmp);
1414 if (devconf->devargs)
1416 tmp = format (0, "%U,%s", format_vlib_pci_addr, &devconf->pci_addr, devconf->devargs, 0);
1420 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1422 vec_add1 (conf->eal_init_args, tmp);
1424 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0)
1426 tmp = format (0, "-b%c", 0);
1427 vec_add1 (conf->eal_init_args, tmp);
1428 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1429 vec_add1 (conf->eal_init_args, tmp);
1436 /* set master-lcore */
1437 tmp = format (0, "--master-lcore%c", 0);
1438 vec_add1 (conf->eal_init_args, tmp);
1439 tmp = format (0, "%u%c", tm->main_lcore, 0);
1440 vec_add1 (conf->eal_init_args, tmp);
1444 clib_warning ("socket-mem argument is deprecated");
1446 /* NULL terminate the "argv" vector, in case of stupidity */
1447 vec_add1 (conf->eal_init_args, 0);
1448 _vec_len (conf->eal_init_args) -= 1;
1450 /* Set up DPDK eal and packet mbuf pool early. */
1452 int log_fds[2] = { 0 };
1453 if (pipe (log_fds) == 0)
1455 if (fcntl (log_fds[1], F_SETFL, O_NONBLOCK) == 0)
1457 FILE *f = fdopen (log_fds[1], "a");
1458 if (f && rte_openlog_stream (f) == 0)
1460 clib_file_t t = { 0 };
1461 t.read_function = dpdk_log_read_ready;
1462 t.file_descriptor = log_fds[0];
1463 t.description = format (0, "DPDK logging pipe");
1464 clib_file_add (&file_main, &t);
1474 vm = vlib_get_main ();
1476 /* make copy of args as rte_eal_init tends to mess up with arg array */
1477 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1478 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1479 conf->eal_init_args[i]);
1481 vec_terminate_c_string (conf->eal_init_args_str);
1483 dpdk_log_warn ("EAL init args: %s", conf->eal_init_args_str);
1484 ret = rte_eal_init (vec_len (conf->eal_init_args),
1485 (char **) conf->eal_init_args);
1487 /* lazy umount hugepages */
1488 umount2 ((char *) huge_dir_path, MNT_DETACH);
1489 rmdir ((char *) huge_dir_path);
1490 vec_free (huge_dir_path);
1493 return clib_error_return (0, "rte_eal_init returned %d", ret);
1495 /* main thread 1st */
1496 if ((error = dpdk_buffer_pools_create (vm)))
1503 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1506 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1508 vnet_main_t *vnm = vnet_get_main ();
1509 struct rte_eth_link prev_link = xd->link;
1511 u8 hw_flags_chg = 0;
1513 /* only update link state for PMD interfaces */
1514 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
1517 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1518 clib_memset (&xd->link, 0, sizeof (xd->link));
1519 rte_eth_link_get_nowait (xd->port_id, &xd->link);
1521 if (LINK_STATE_ELOGS)
1523 vlib_main_t *vm = vlib_get_main ();
1524 ELOG_TYPE_DECLARE (e) =
1527 "update-link-state: sw_if_index %d, admin_up %d,"
1528 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1537 ed = ELOG_DATA (&vm->elog_main, e);
1538 ed->sw_if_index = xd->sw_if_index;
1539 ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1540 ed->old_link_state = (u8)
1541 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
1542 ed->new_link_state = (u8) xd->link.link_status;
1545 if ((xd->link.link_duplex != prev_link.link_duplex))
1548 switch (xd->link.link_duplex)
1550 case ETH_LINK_HALF_DUPLEX:
1551 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1553 case ETH_LINK_FULL_DUPLEX:
1554 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1560 if (xd->link.link_speed != prev_link.link_speed)
1561 vnet_hw_interface_set_link_speed (vnm, xd->hw_if_index,
1562 xd->link.link_speed * 1000);
1564 if (xd->link.link_status != prev_link.link_status)
1568 if (xd->link.link_status)
1569 hw_flags |= VNET_HW_INTERFACE_FLAG_LINK_UP;
1574 if (LINK_STATE_ELOGS)
1576 vlib_main_t *vm = vlib_get_main ();
1578 ELOG_TYPE_DECLARE (e) =
1581 "update-link-state: sw_if_index %d, new flags %d",.format_args
1589 ed = ELOG_DATA (&vm->elog_main, e);
1590 ed->sw_if_index = xd->sw_if_index;
1591 ed->flags = hw_flags;
1593 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, hw_flags);
1598 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1600 clib_error_t *error;
1601 dpdk_main_t *dm = &dpdk_main;
1603 vlib_thread_main_t *tm = vlib_get_thread_main ();
1605 error = dpdk_lib_init (dm);
1608 clib_error_report (error);
1610 tm->worker_thread_release = 1;
1612 f64 now = vlib_time_now (vm);
1613 vec_foreach (xd, dm->devices)
1615 dpdk_update_link_state (xd, now);
1621 * check each time through the loop in case intervals are changed
1623 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1624 dm->link_state_poll_interval : dm->stat_poll_interval;
1626 vlib_process_wait_for_event_or_clock (vm, min_wait);
1628 if (dm->admin_up_down_in_progress)
1629 /* skip the poll if an admin up down is in progress (on any interface) */
1632 vec_foreach (xd, dm->devices)
1634 f64 now = vlib_time_now (vm);
1635 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1636 dpdk_update_counters (xd, now);
1637 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1638 dpdk_update_link_state (xd, now);
1647 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1648 .function = dpdk_process,
1649 .type = VLIB_NODE_TYPE_PROCESS,
1650 .name = "dpdk-process",
1651 .process_log2_n_stack_bytes = 17,
1655 static clib_error_t *
1656 dpdk_init (vlib_main_t * vm)
1658 dpdk_main_t *dm = &dpdk_main;
1659 clib_error_t *error = 0;
1661 /* verify that structs are cacheline aligned */
1662 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1663 "Cache line marker must be 1st element in dpdk_device_t");
1664 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1665 CLIB_CACHE_LINE_BYTES,
1666 "Data in cache line 0 is bigger than cache line size");
1667 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1668 "Cache line marker must be 1st element in frame_queue_trace_t");
1669 STATIC_ASSERT (RTE_CACHE_LINE_SIZE == 1 << CLIB_LOG2_CACHE_LINE_BYTES,
1670 "DPDK RTE CACHE LINE SIZE does not match with 1<<CLIB_LOG2_CACHE_LINE_BYTES");
1672 dpdk_cli_reference ();
1675 dm->vnet_main = vnet_get_main ();
1676 dm->conf = &dpdk_config_main;
1678 dm->conf->nchannels = 4;
1679 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1680 vec_add1 (dm->conf->eal_init_args, (u8 *) "--in-memory");
1682 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1683 dm->buffer_flags_template = (VLIB_BUFFER_TOTAL_LENGTH_VALID |
1684 VLIB_BUFFER_EXT_HDR_VALID |
1685 VNET_BUFFER_F_L4_CHECKSUM_COMPUTED |
1686 VNET_BUFFER_F_L4_CHECKSUM_CORRECT);
1688 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1689 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1691 dm->log_default = vlib_log_register_class ("dpdk", 0);
1696 VLIB_INIT_FUNCTION (dpdk_init);
1699 * fd.io coding-style-patch-verification: ON
1702 * eval: (c-set-style "gnu")