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/device/dpdk.h>
26 #include <vlib/pci/pci.h>
27 #include <vlib/vmbus/vmbus.h>
35 #include <sys/mount.h>
39 #include <dpdk/device/dpdk_priv.h>
41 #define ETHER_MAX_LEN 1518 /**< Maximum frame len, including CRC. */
43 dpdk_main_t dpdk_main;
44 dpdk_config_main_t dpdk_config_main;
46 #define LINK_STATE_ELOGS 0
48 /* Port configuration, mildly modified Intel app values */
50 static dpdk_port_type_t
51 port_type_from_speed_capa (struct rte_eth_dev_info *dev_info)
54 if (dev_info->speed_capa & ETH_LINK_SPEED_100G)
55 return VNET_DPDK_PORT_TYPE_ETH_100G;
56 else if (dev_info->speed_capa & ETH_LINK_SPEED_56G)
57 return VNET_DPDK_PORT_TYPE_ETH_56G;
58 else if (dev_info->speed_capa & ETH_LINK_SPEED_50G)
59 return VNET_DPDK_PORT_TYPE_ETH_50G;
60 else if (dev_info->speed_capa & ETH_LINK_SPEED_40G)
61 return VNET_DPDK_PORT_TYPE_ETH_40G;
62 else if (dev_info->speed_capa & ETH_LINK_SPEED_25G)
63 return VNET_DPDK_PORT_TYPE_ETH_25G;
64 else if (dev_info->speed_capa & ETH_LINK_SPEED_20G)
65 return VNET_DPDK_PORT_TYPE_ETH_20G;
66 else if (dev_info->speed_capa & ETH_LINK_SPEED_10G)
67 return VNET_DPDK_PORT_TYPE_ETH_10G;
68 else if (dev_info->speed_capa & ETH_LINK_SPEED_5G)
69 return VNET_DPDK_PORT_TYPE_ETH_5G;
70 else if (dev_info->speed_capa & ETH_LINK_SPEED_2_5G)
71 return VNET_DPDK_PORT_TYPE_ETH_2_5G;
72 else if (dev_info->speed_capa & ETH_LINK_SPEED_1G)
73 return VNET_DPDK_PORT_TYPE_ETH_1G;
75 return VNET_DPDK_PORT_TYPE_UNKNOWN;
78 static dpdk_port_type_t
79 port_type_from_link_speed (u32 link_speed)
83 case ETH_SPEED_NUM_1G:
84 return VNET_DPDK_PORT_TYPE_ETH_1G;
85 case ETH_SPEED_NUM_2_5G:
86 return VNET_DPDK_PORT_TYPE_ETH_2_5G;
87 case ETH_SPEED_NUM_5G:
88 return VNET_DPDK_PORT_TYPE_ETH_5G;
89 case ETH_SPEED_NUM_10G:
90 return VNET_DPDK_PORT_TYPE_ETH_10G;
91 case ETH_SPEED_NUM_20G:
92 return VNET_DPDK_PORT_TYPE_ETH_20G;
93 case ETH_SPEED_NUM_25G:
94 return VNET_DPDK_PORT_TYPE_ETH_25G;
95 case ETH_SPEED_NUM_40G:
96 return VNET_DPDK_PORT_TYPE_ETH_40G;
97 case ETH_SPEED_NUM_50G:
98 return VNET_DPDK_PORT_TYPE_ETH_50G;
99 case ETH_SPEED_NUM_56G:
100 return VNET_DPDK_PORT_TYPE_ETH_56G;
101 case ETH_SPEED_NUM_100G:
102 return VNET_DPDK_PORT_TYPE_ETH_100G;
104 return VNET_DPDK_PORT_TYPE_UNKNOWN;
109 dpdk_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hi, u32 flags)
111 dpdk_main_t *dm = &dpdk_main;
112 dpdk_device_t *xd = vec_elt_at_index (dm->devices, hi->dev_instance);
115 if (ETHERNET_INTERFACE_FLAG_CONFIG_PROMISC (flags))
117 old = (xd->flags & DPDK_DEVICE_FLAG_PROMISC) != 0;
119 if (flags & ETHERNET_INTERFACE_FLAG_ACCEPT_ALL)
120 xd->flags |= DPDK_DEVICE_FLAG_PROMISC;
122 xd->flags &= ~DPDK_DEVICE_FLAG_PROMISC;
124 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
126 if (xd->flags & DPDK_DEVICE_FLAG_PROMISC)
127 rte_eth_promiscuous_enable (xd->port_id);
129 rte_eth_promiscuous_disable (xd->port_id);
132 else if (ETHERNET_INTERFACE_FLAG_CONFIG_MTU (flags))
134 xd->port_conf.rxmode.max_rx_pkt_len = hi->max_packet_bytes;
135 dpdk_device_setup (xd);
141 dpdk_device_lock_init (dpdk_device_t * xd)
144 vec_validate (xd->lockp, xd->tx_q_used - 1);
145 for (q = 0; q < xd->tx_q_used; q++)
147 xd->lockp[q] = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
148 CLIB_CACHE_LINE_BYTES);
149 clib_memset ((void *) xd->lockp[q], 0, CLIB_CACHE_LINE_BYTES);
153 static struct rte_mempool_ops *
154 get_ops_by_name (char *ops_name)
158 for (i = 0; i < rte_mempool_ops_table.num_ops; i++)
160 if (!strcmp (ops_name, rte_mempool_ops_table.ops[i].name))
161 return &rte_mempool_ops_table.ops[i];
168 dpdk_ring_alloc (struct rte_mempool *mp)
170 u32 rg_flags = 0, count;
172 char rg_name[RTE_RING_NAMESIZE];
175 ret = snprintf (rg_name, sizeof (rg_name), RTE_MEMPOOL_MZ_FORMAT, mp->name);
176 if (ret < 0 || ret >= (i32) sizeof (rg_name))
177 return -ENAMETOOLONG;
180 if (mp->flags & MEMPOOL_F_SP_PUT)
181 rg_flags |= RING_F_SP_ENQ;
182 if (mp->flags & MEMPOOL_F_SC_GET)
183 rg_flags |= RING_F_SC_DEQ;
185 count = rte_align32pow2 (mp->size + 1);
187 * Allocate the ring that will be used to store objects.
188 * Ring functions will return appropriate errors if we are
189 * running as a secondary process etc., so no checks made
190 * in this function for that condition.
192 /* XXX can we get memory from the right socket? */
193 r = clib_mem_alloc_aligned (rte_ring_get_memsize (count),
194 CLIB_CACHE_LINE_BYTES);
196 /* XXX rte_ring_lookup will not work */
198 ret = rte_ring_init (r, rg_name, count, rg_flags);
208 dpdk_port_crc_strip_enabled (dpdk_device_t * xd)
210 #if RTE_VERSION < RTE_VERSION_NUM(18, 11, 0, 0)
211 return ! !(xd->port_conf.rxmode.offloads & DEV_RX_OFFLOAD_CRC_STRIP);
213 return !(xd->port_conf.rxmode.offloads & DEV_RX_OFFLOAD_KEEP_CRC);
217 static clib_error_t *
218 dpdk_lib_init (dpdk_main_t * dm)
221 u32 mtu, max_rx_frame;
225 vlib_main_t *vm = vlib_get_main ();
226 vlib_thread_main_t *tm = vlib_get_thread_main ();
227 vnet_device_main_t *vdm = &vnet_device_main;
228 vnet_sw_interface_t *sw;
229 vnet_hw_interface_t *hi;
231 vlib_pci_addr_t last_pci_addr;
232 u32 last_pci_addr_port = 0;
233 vlib_thread_registration_t *tr_hqos;
236 u32 next_hqos_cpu = 0;
237 u8 af_packet_instance_num = 0;
238 u8 bond_ether_instance_num = 0;
239 last_pci_addr.as_u32 = ~0;
241 dm->hqos_cpu_first_index = 0;
242 dm->hqos_cpu_count = 0;
244 /* find out which cpus will be used for I/O TX */
245 p_hqos = hash_get_mem (tm->thread_registrations_by_name, "hqos-threads");
246 tr_hqos = p_hqos ? (vlib_thread_registration_t *) p_hqos[0] : 0;
248 if (tr_hqos && tr_hqos->count > 0)
250 dm->hqos_cpu_first_index = tr_hqos->first_index;
251 dm->hqos_cpu_count = tr_hqos->count;
254 vec_validate_aligned (dm->devices_by_hqos_cpu, tm->n_vlib_mains - 1,
255 CLIB_CACHE_LINE_BYTES);
257 nports = rte_eth_dev_count_avail ();
261 dpdk_log_notice ("DPDK drivers found no ports...");
265 dpdk_log_notice ("DPDK drivers found %d ports...", nports);
267 if (dm->conf->enable_tcp_udp_checksum)
268 dm->buffer_flags_template &= ~(VNET_BUFFER_F_L4_CHECKSUM_CORRECT
269 | VNET_BUFFER_F_L4_CHECKSUM_COMPUTED);
271 /* vlib_buffer_t template */
272 vec_validate_aligned (dm->per_thread_data, tm->n_vlib_mains - 1,
273 CLIB_CACHE_LINE_BYTES);
274 for (i = 0; i < tm->n_vlib_mains; i++)
276 vlib_buffer_free_list_t *fl;
277 dpdk_per_thread_data_t *ptd = vec_elt_at_index (dm->per_thread_data, i);
278 fl = vlib_buffer_get_free_list (vm,
279 VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX);
280 vlib_buffer_init_for_free_list (&ptd->buffer_template, fl);
281 ptd->buffer_template.flags = dm->buffer_flags_template;
282 vnet_buffer (&ptd->buffer_template)->sw_if_index[VLIB_TX] = (u32) ~ 0;
286 RTE_ETH_FOREACH_DEV(i)
290 struct rte_eth_dev_info dev_info;
291 struct rte_pci_device *pci_dev;
292 struct rte_eth_link l;
293 dpdk_device_config_t *devconf = 0;
294 vlib_pci_addr_t pci_addr;
297 if (!rte_eth_dev_is_valid_port(i))
300 rte_eth_link_get_nowait (i, &l);
301 rte_eth_dev_info_get (i, &dev_info);
303 if (dev_info.device == 0)
305 clib_warning ("DPDK bug: missing device info. Skipping %s device",
306 dev_info.driver_name);
310 pci_dev = dpdk_get_pci_device (&dev_info);
312 if (pci_dev) /* bonded interface has no pci info */
314 pci_addr.domain = pci_dev->addr.domain;
315 pci_addr.bus = pci_dev->addr.bus;
316 pci_addr.slot = pci_dev->addr.devid;
317 pci_addr.function = pci_dev->addr.function;
318 p = hash_get (dm->conf->device_config_index_by_pci_addr,
323 /* Create vnet interface */
324 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
325 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
326 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
327 xd->cpu_socket = (i8) rte_eth_dev_socket_id (i);
331 devconf = pool_elt_at_index (dm->conf->dev_confs, p[0]);
332 xd->name = devconf->name;
335 devconf = &dm->conf->default_devconf;
337 /* Handle interface naming for devices with multiple ports sharing same PCI ID */
340 struct rte_eth_dev_info di = { 0 };
341 struct rte_pci_device *next_pci_dev;
342 rte_eth_dev_info_get (i + 1, &di);
343 next_pci_dev = di.device ? RTE_DEV_TO_PCI (di.device) : 0;
344 if (pci_dev && next_pci_dev &&
345 pci_addr.as_u32 != last_pci_addr.as_u32 &&
346 memcmp (&pci_dev->addr, &next_pci_dev->addr,
347 sizeof (struct rte_pci_addr)) == 0)
349 xd->interface_name_suffix = format (0, "0");
350 last_pci_addr.as_u32 = pci_addr.as_u32;
351 last_pci_addr_port = i;
353 else if (pci_addr.as_u32 == last_pci_addr.as_u32)
355 xd->interface_name_suffix =
356 format (0, "%u", i - last_pci_addr_port);
360 last_pci_addr.as_u32 = ~0;
364 last_pci_addr.as_u32 = ~0;
366 clib_memcpy (&xd->tx_conf, &dev_info.default_txconf,
367 sizeof (struct rte_eth_txconf));
369 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_IPV4_CKSUM)
371 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_IPV4_CKSUM;
372 xd->flags |= DPDK_DEVICE_FLAG_RX_IP4_CKSUM;
375 if (dm->conf->no_multi_seg)
377 xd->port_conf.txmode.offloads &= ~DEV_TX_OFFLOAD_MULTI_SEGS;
378 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME;
379 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
383 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
384 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
385 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_SCATTER;
386 xd->flags |= DPDK_DEVICE_FLAG_MAYBE_MULTISEG;
389 xd->tx_q_used = clib_min (dev_info.max_tx_queues, tm->n_vlib_mains);
391 if (devconf->num_tx_queues > 0
392 && devconf->num_tx_queues < xd->tx_q_used)
393 xd->tx_q_used = clib_min (xd->tx_q_used, devconf->num_tx_queues);
395 if (devconf->num_rx_queues > 1
396 && dev_info.max_rx_queues >= devconf->num_rx_queues)
398 xd->rx_q_used = devconf->num_rx_queues;
399 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
400 if (devconf->rss_fn == 0)
401 xd->port_conf.rx_adv_conf.rss_conf.rss_hf =
402 ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
405 u64 unsupported_bits;
406 xd->port_conf.rx_adv_conf.rss_conf.rss_hf = devconf->rss_fn;
407 unsupported_bits = xd->port_conf.rx_adv_conf.rss_conf.rss_hf;
408 unsupported_bits &= ~dev_info.flow_type_rss_offloads;
409 if (unsupported_bits)
410 dpdk_log_warn ("Unsupported RSS hash functions: %U",
411 format_dpdk_rss_hf_name, unsupported_bits);
413 xd->port_conf.rx_adv_conf.rss_conf.rss_hf &=
414 dev_info.flow_type_rss_offloads;
419 xd->flags |= DPDK_DEVICE_FLAG_PMD;
421 /* workaround for drivers not setting driver_name */
422 if ((!dev_info.driver_name) && (pci_dev))
423 dev_info.driver_name = pci_dev->driver->driver.name;
425 ASSERT (dev_info.driver_name);
431 #define _(s,f) else if (dev_info.driver_name && \
432 !strcmp(dev_info.driver_name, s)) \
433 xd->pmd = VNET_DPDK_PMD_##f;
439 xd->pmd = VNET_DPDK_PMD_UNKNOWN;
441 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
442 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
443 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
447 /* Drivers with valid speed_capa set */
448 case VNET_DPDK_PMD_E1000EM:
449 case VNET_DPDK_PMD_IGB:
450 case VNET_DPDK_PMD_IXGBE:
451 case VNET_DPDK_PMD_I40E:
452 xd->port_type = port_type_from_speed_capa (&dev_info);
453 xd->supported_flow_actions = VNET_FLOW_ACTION_MARK |
454 VNET_FLOW_ACTION_REDIRECT_TO_NODE |
455 VNET_FLOW_ACTION_BUFFER_ADVANCE |
456 VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP;
458 if (dm->conf->no_tx_checksum_offload == 0)
460 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
461 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
463 DPDK_DEVICE_FLAG_TX_OFFLOAD |
464 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
469 case VNET_DPDK_PMD_CXGBE:
470 case VNET_DPDK_PMD_MLX4:
471 case VNET_DPDK_PMD_MLX5:
472 case VNET_DPDK_PMD_QEDE:
473 xd->port_type = port_type_from_speed_capa (&dev_info);
477 case VNET_DPDK_PMD_IGBVF:
478 case VNET_DPDK_PMD_IXGBEVF:
479 case VNET_DPDK_PMD_I40EVF:
480 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
481 #if RTE_VERSION < RTE_VERSION_NUM(18, 11, 0, 0)
482 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_CRC_STRIP;
486 case VNET_DPDK_PMD_THUNDERX:
487 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
488 #if RTE_VERSION < RTE_VERSION_NUM(18, 11, 0, 0)
489 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_CRC_STRIP;
492 if (dm->conf->no_tx_checksum_offload == 0)
494 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
495 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
496 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD;
500 case VNET_DPDK_PMD_ENA:
501 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
502 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
505 case VNET_DPDK_PMD_DPAA2:
506 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
510 case VNET_DPDK_PMD_ENIC:
511 if (l.link_speed == 40000)
512 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
514 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
517 /* Intel Red Rock Canyon */
518 case VNET_DPDK_PMD_FM10K:
519 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
520 #if RTE_VERSION < RTE_VERSION_NUM(18, 11, 0, 0)
521 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_CRC_STRIP;
526 case VNET_DPDK_PMD_VIRTIO:
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_BOND:
544 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_BOND;
545 xd->bond_instance_num = bond_ether_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;
576 if (devconf->num_tx_desc)
577 xd->nb_tx_desc = devconf->num_tx_desc;
580 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
582 f64 now = vlib_time_now (vm);
584 rnd = (u32) (now * 1e6);
585 rnd = random_u32 (&rnd);
586 clib_memcpy (addr + 2, &rnd, sizeof (rnd));
591 rte_eth_macaddr_get (i, (struct ether_addr *) addr);
593 if (xd->tx_q_used < tm->n_vlib_mains)
594 dpdk_device_lock_init (xd);
597 xd->device_index = xd - dm->devices;
598 xd->per_interface_next_index = ~0;
600 /* assign interface to input thread */
603 if (devconf->hqos_enabled)
605 xd->flags |= DPDK_DEVICE_FLAG_HQOS;
608 if (devconf->hqos.hqos_thread_valid)
610 if (devconf->hqos.hqos_thread >= dm->hqos_cpu_count)
611 return clib_error_return (0, "invalid HQoS thread index");
613 cpu = dm->hqos_cpu_first_index + devconf->hqos.hqos_thread;
617 if (dm->hqos_cpu_count == 0)
618 return clib_error_return (0, "no HQoS threads available");
620 cpu = dm->hqos_cpu_first_index + next_hqos_cpu;
623 if (next_hqos_cpu == dm->hqos_cpu_count)
626 devconf->hqos.hqos_thread_valid = 1;
627 devconf->hqos.hqos_thread = cpu;
630 dpdk_device_and_queue_t *dq;
631 vec_add2 (dm->devices_by_hqos_cpu[cpu], dq, 1);
632 dq->device = xd->device_index;
636 /* count the number of descriptors used for this device */
637 nb_desc += xd->nb_rx_desc + xd->nb_tx_desc * xd->tx_q_used;
639 error = ethernet_register_interface
640 (dm->vnet_main, dpdk_device_class.index, xd->device_index,
641 /* ethernet address */ addr,
642 &xd->hw_if_index, dpdk_flag_change);
647 * Ensure default mtu is not > the mtu read from the hardware.
648 * Otherwise rte_eth_dev_configure() will fail and the port will
650 * Calculate max_frame_size and mtu supported by NIC
652 if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
655 * This device does not support the platforms's max frame
656 * size. Use it's advertised mru instead.
658 max_rx_frame = dev_info.max_rx_pktlen;
659 mtu = dev_info.max_rx_pktlen - sizeof (ethernet_header_t);
663 /* VPP treats MTU and max_rx_pktlen both equal to
664 * ETHERNET_MAX_PACKET_BYTES, if dev_info.max_rx_pktlen >=
665 * ETHERNET_MAX_PACKET_BYTES + sizeof(ethernet_header_t)
667 if (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
668 sizeof (ethernet_header_t)))
670 mtu = ETHERNET_MAX_PACKET_BYTES;
671 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
674 * Some platforms do not account for Ethernet FCS (4 bytes) in
675 * MTU calculations. To interop with them increase mru but only
676 * if the device's settings can support it.
678 if (dpdk_port_crc_strip_enabled (xd) &&
679 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
680 sizeof (ethernet_header_t) +
688 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
689 mtu = ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
691 if (dpdk_port_crc_strip_enabled (xd) &&
692 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)))
699 if (xd->pmd == VNET_DPDK_PMD_FAILSAFE)
701 /* failsafe device numerables are reported with active device only,
702 * need to query the mtu for current device setup to overwrite
706 if (!rte_eth_dev_get_mtu (i, &dev_mtu))
709 max_rx_frame = mtu + sizeof (ethernet_header_t);
711 if (dpdk_port_crc_strip_enabled (xd))
718 /*Set port rxmode config */
719 xd->port_conf.rxmode.max_rx_pkt_len = max_rx_frame;
721 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->hw_if_index);
722 xd->sw_if_index = sw->sw_if_index;
723 vnet_hw_interface_set_input_node (dm->vnet_main, xd->hw_if_index,
724 dpdk_input_node.index);
726 if (devconf->workers)
730 clib_bitmap_foreach (i, devconf->workers, ({
731 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q++,
732 vdm->first_worker_thread_index + i);
736 for (q = 0; q < xd->rx_q_used; q++)
738 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q, /* any */
742 /*Get vnet hardware interface */
743 hi = vnet_get_hw_interface (dm->vnet_main, xd->hw_if_index);
745 /*Override default max_packet_bytes and max_supported_bytes set in
746 * ethernet_register_interface() above*/
749 hi->max_packet_bytes = mtu;
750 hi->max_supported_packet_bytes = max_rx_frame;
753 if (dm->conf->no_tx_checksum_offload == 0)
754 if (xd->flags & DPDK_DEVICE_FLAG_TX_OFFLOAD && hi != NULL)
755 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD;
757 dpdk_device_setup (xd);
759 if (vec_len (xd->errors))
760 dpdk_log_err ("setup failed for device %U. Errors:\n %U",
761 format_dpdk_device_name, i,
762 format_dpdk_device_errors, xd);
764 if (devconf->hqos_enabled)
767 rv = dpdk_port_setup_hqos (xd, &devconf->hqos);
773 * For cisco VIC vNIC, set default to VLAN strip enabled, unless
774 * specified otherwise in the startup config.
775 * For other NICs default to VLAN strip disabled, unless specified
776 * otherwise in the startup config.
778 if (xd->pmd == VNET_DPDK_PMD_ENIC)
780 if (devconf->vlan_strip_offload != DPDK_DEVICE_VLAN_STRIP_OFF)
781 vlan_strip = 1; /* remove vlan tag from VIC port by default */
783 dpdk_log_warn ("VLAN strip disabled for interface\n");
785 else if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
791 vlan_off = rte_eth_dev_get_vlan_offload (xd->port_id);
792 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
794 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_VLAN_STRIP;
796 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP;
797 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) == 0)
798 dpdk_log_info ("VLAN strip enabled for interface\n");
800 dpdk_log_warn ("VLAN strip cannot be supported by interface\n");
804 hi->max_packet_bytes = xd->port_conf.rxmode.max_rx_pkt_len
805 - sizeof (ethernet_header_t);
807 clib_warning ("hi NULL");
809 if (dm->conf->no_multi_seg)
810 mtu = mtu > ETHER_MAX_LEN ? ETHER_MAX_LEN : mtu;
812 rte_eth_dev_set_mtu (xd->port_id, mtu);
816 if (nb_desc > dm->conf->num_mbufs)
817 dpdk_log_err ("%d mbufs allocated but total rx/tx ring size is %d\n",
818 dm->conf->num_mbufs, nb_desc);
824 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
826 vlib_main_t *vm = vlib_get_main ();
829 int num_whitelisted = vec_len (conf->dev_confs);
830 vlib_pci_device_info_t *d = 0;
831 vlib_pci_addr_t *addr = 0, *addrs;
834 addrs = vlib_pci_get_all_dev_addrs ();
836 vec_foreach (addr, addrs)
838 dpdk_device_config_t * devconf = 0;
839 vec_reset_length (pci_addr);
840 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, addr, 0);
843 vlib_pci_free_device_info (d);
846 d = vlib_pci_get_device_info (vm, addr, &error);
849 clib_error_report (error);
853 if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
858 uword * p = hash_get (conf->device_config_index_by_pci_addr, addr->as_u32);
866 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
869 /* Enforce Device blacklist by vendor and device */
870 for (i = 0; i < vec_len (conf->blacklist_by_pci_vendor_and_device); i++)
873 vendor = (u16)(conf->blacklist_by_pci_vendor_and_device[i] >> 16);
874 device = (u16)(conf->blacklist_by_pci_vendor_and_device[i] & 0xFFFF);
875 if (d->vendor_id == vendor && d->device_id == device)
878 * Expected case: device isn't whitelisted,
883 /* Device is blacklisted */
884 pool_get (conf->dev_confs, devconf);
885 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
886 devconf - conf->dev_confs);
887 devconf->pci_addr.as_u32 = addr->as_u32;
888 devconf->is_blacklisted = 1;
891 else /* explicitly whitelisted, ignore the device blacklist */
897 if (d->vendor_id == 0x1af4 &&
898 (d->device_id == VIRTIO_PCI_LEGACY_DEVICEID_NET ||
899 d->device_id == VIRTIO_PCI_MODERN_DEVICEID_NET))
902 else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
905 * For vmxnet3 PCI, unless it is explicitly specified in the whitelist,
906 * the default is to put it in the blacklist.
910 pool_get (conf->dev_confs, devconf);
911 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
912 devconf - conf->dev_confs);
913 devconf->pci_addr.as_u32 = addr->as_u32;
914 devconf->is_blacklisted = 1;
917 /* all Intel network devices */
918 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
920 /* all Intel QAT devices VFs */
921 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
922 (d->device_id == 0x0443 || d->device_id == 0x37c9 || d->device_id == 0x19e3))
925 else if (d->vendor_id == 0x1137 && d->device_id == 0x0043)
928 else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
930 /* Amazen Elastic Network Adapter */
931 else if (d->vendor_id == 0x1d0f && d->device_id >= 0xec20 && d->device_id <= 0xec21)
933 /* Cavium Network Adapter */
934 else if (d->vendor_id == 0x177d && d->device_id == 0x9712)
936 /* Cavium FastlinQ QL41000 Series */
937 else if (d->vendor_id == 0x1077 && d->device_id >= 0x8070 && d->device_id <= 0x8090)
940 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1003 && d->device_id <= 0x1004)
945 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1013 && d->device_id <= 0x101a)
951 dpdk_log_warn ("Unsupported PCI device 0x%04x:0x%04x found "
952 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
957 error = vlib_pci_bind_to_uio (vm, addr, (char *) conf->uio_driver_name);
963 pool_get (conf->dev_confs, devconf);
964 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
965 devconf - conf->dev_confs);
966 devconf->pci_addr.as_u32 = addr->as_u32;
968 devconf->is_blacklisted = 1;
969 clib_error_report (error);
974 vlib_pci_free_device_info (d);
978 dpdk_bind_vmbus_devices_to_uio (dpdk_config_main_t * conf)
981 vlib_vmbus_addr_t *addrs, *addr = 0;
983 addrs = vlib_vmbus_get_all_dev_addrs ();
986 vec_foreach (addr, addrs)
988 error = vlib_vmbus_bind_to_uio (addr);
992 clib_error_report (error);
998 static clib_error_t *
999 dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr,
1000 unformat_input_t * input, u8 is_default)
1002 clib_error_t *error = 0;
1004 dpdk_device_config_t *devconf;
1005 unformat_input_t sub_input;
1009 devconf = &conf->default_devconf;
1013 p = hash_get (conf->device_config_index_by_pci_addr, pci_addr.as_u32);
1017 pool_get (conf->dev_confs, devconf);
1018 hash_set (conf->device_config_index_by_pci_addr, pci_addr.as_u32,
1019 devconf - conf->dev_confs);
1022 return clib_error_return (0,
1023 "duplicate configuration for PCI address %U",
1024 format_vlib_pci_addr, &pci_addr);
1027 devconf->pci_addr.as_u32 = pci_addr.as_u32;
1028 devconf->hqos_enabled = 0;
1029 dpdk_device_config_hqos_default (&devconf->hqos);
1034 unformat_skip_white_space (input);
1035 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1037 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
1039 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
1041 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
1043 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
1045 else if (unformat (input, "name %s", &devconf->name))
1047 else if (unformat (input, "workers %U", unformat_bitmap_list,
1052 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
1054 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
1058 else if (unformat (input, "vlan-strip-offload off"))
1059 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
1060 else if (unformat (input, "vlan-strip-offload on"))
1061 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
1064 (input, "hqos %U", unformat_vlib_cli_sub_input, &sub_input))
1066 devconf->hqos_enabled = 1;
1067 error = unformat_hqos (&sub_input, &devconf->hqos);
1071 else if (unformat (input, "hqos"))
1073 devconf->hqos_enabled = 1;
1077 error = clib_error_return (0, "unknown input `%U'",
1078 format_unformat_error, input);
1086 if (devconf->workers && devconf->num_rx_queues == 0)
1087 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
1088 else if (devconf->workers &&
1089 clib_bitmap_count_set_bits (devconf->workers) !=
1090 devconf->num_rx_queues)
1092 clib_error_return (0,
1093 "%U: number of worker threads must be "
1094 "equal to number of rx queues", format_vlib_pci_addr,
1100 static clib_error_t *
1101 dpdk_log_read_ready (clib_file_t * uf)
1103 unformat_input_t input;
1110 uword len = vec_len (s);
1111 vec_resize (s, len + n_try);
1113 n = read (uf->file_descriptor, s + len, n_try);
1114 if (n < 0 && errno != EAGAIN)
1115 return clib_error_return_unix (0, "read");
1116 _vec_len (s) = len + (n < 0 ? 0 : n);
1119 unformat_init_vector (&input, s);
1121 while (unformat_user (&input, unformat_line, &line))
1123 dpdk_log_notice ("%v", line);
1127 unformat_free (&input);
1131 static clib_error_t *
1132 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
1134 clib_error_t *error = 0;
1135 dpdk_config_main_t *conf = &dpdk_config_main;
1136 vlib_thread_main_t *tm = vlib_get_thread_main ();
1137 dpdk_device_config_t *devconf;
1138 vlib_pci_addr_t pci_addr;
1139 unformat_input_t sub_input;
1144 int num_whitelisted = 0;
1151 u8 *huge_dir_path = 0;
1155 format (0, "%s/hugepages%c", vlib_unix_get_runtime_dir (), 0);
1157 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
1158 log_level = RTE_LOG_NOTICE;
1160 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1162 /* Prime the pump */
1163 if (unformat (input, "no-hugetlb"))
1165 vec_add1 (conf->eal_init_args, (u8 *) "--no-huge");
1169 else if (unformat (input, "enable-tcp-udp-checksum"))
1170 conf->enable_tcp_udp_checksum = 1;
1172 else if (unformat (input, "no-tx-checksum-offload"))
1173 conf->no_tx_checksum_offload = 1;
1175 else if (unformat (input, "decimal-interface-names"))
1176 conf->interface_name_format_decimal = 1;
1178 else if (unformat (input, "log-level %U", unformat_dpdk_log_level, &x))
1181 else if (unformat (input, "no-multi-seg"))
1182 conf->no_multi_seg = 1;
1184 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
1188 dpdk_device_config (conf, (vlib_pci_addr_t) (u32) ~ 1, &sub_input,
1196 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
1197 unformat_vlib_cli_sub_input, &sub_input))
1199 error = dpdk_device_config (conf, pci_addr, &sub_input, 0);
1206 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
1208 error = dpdk_device_config (conf, pci_addr, 0, 0);
1215 else if (unformat (input, "num-mem-channels %d", &conf->nchannels))
1216 conf->nchannels_set_manually = 0;
1217 else if (unformat (input, "num-mbufs %d", &conf->num_mbufs))
1219 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
1221 else if (unformat (input, "socket-mem %s", &socket_mem))
1223 else if (unformat (input, "no-pci"))
1226 tmp = format (0, "--no-pci%c", 0);
1227 vec_add1 (conf->eal_init_args, tmp);
1229 else if (unformat (input, "blacklist %x:%x", &vendor, &device))
1231 u32 blacklist_entry;
1232 if (vendor > 0xFFFF)
1233 return clib_error_return (0, "blacklist PCI vendor out of range");
1234 if (device > 0xFFFF)
1235 return clib_error_return (0, "blacklist PCI device out of range");
1236 blacklist_entry = (vendor << 16) | (device & 0xffff);
1237 vec_add1 (conf->blacklist_by_pci_vendor_and_device,
1240 else if (unformat (input, "no-vmbus"))
1243 tmp = format (0, "--no-vmbus%c", 0);
1244 vec_add1 (conf->eal_init_args, tmp);
1248 else if (unformat(input, #a)) \
1250 tmp = format (0, "--%s%c", #a, 0); \
1251 vec_add1 (conf->eal_init_args, tmp); \
1253 foreach_eal_double_hyphen_predicate_arg
1256 else if (unformat(input, #a " %s", &s)) \
1258 if (!strncmp(#a, "huge-dir", 8)) \
1260 else if (!strncmp(#a, "file-prefix", 11)) \
1262 tmp = format (0, "--%s%c", #a, 0); \
1263 vec_add1 (conf->eal_init_args, tmp); \
1265 if (!strncmp(#a, "vdev", 4)) \
1266 if (strstr((char*)s, "af_packet")) \
1267 clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
1268 vec_add1 (conf->eal_init_args, s); \
1270 foreach_eal_double_hyphen_arg
1273 else if (unformat(input, #a " %s", &s)) \
1275 tmp = format (0, "-%s%c", #b, 0); \
1276 vec_add1 (conf->eal_init_args, tmp); \
1278 vec_add1 (conf->eal_init_args, s); \
1280 foreach_eal_single_hyphen_arg
1283 else if (unformat(input, #a " %s", &s)) \
1285 tmp = format (0, "-%s%c", #b, 0); \
1286 vec_add1 (conf->eal_init_args, tmp); \
1288 vec_add1 (conf->eal_init_args, s); \
1289 conf->a##_set_manually = 1; \
1291 foreach_eal_single_hyphen_mandatory_arg
1293 else if (unformat (input, "default"))
1296 else if (unformat_skip_white_space (input))
1300 error = clib_error_return (0, "unknown input `%U'",
1301 format_unformat_error, input);
1306 if (!conf->uio_driver_name)
1307 conf->uio_driver_name = format (0, "auto%c", 0);
1310 * Use 1G huge pages if available.
1312 if (!no_huge && !huge_dir)
1314 u32 x, *mem_by_socket = 0;
1318 umount ((char *) huge_dir_path);
1320 /* Process "socket-mem" parameter value */
1321 if (vec_len (socket_mem))
1323 unformat_input_t in;
1324 unformat_init_vector (&in, socket_mem);
1325 while (unformat_check_input (&in) != UNFORMAT_END_OF_INPUT)
1327 if (unformat (&in, "%u,", &x))
1329 else if (unformat (&in, "%u", &x))
1331 else if (unformat (&in, ","))
1336 vec_add1 (mem_by_socket, x);
1338 /* Note: unformat_free vec_frees(in.buffer), aka socket_mem... */
1339 unformat_free (&in);
1345 clib_bitmap_foreach (c, tm->cpu_socket_bitmap, (
1347 vec_validate(mem_by_socket, c);
1348 mem_by_socket[c] = 64; /* default per-socket mem */
1354 uword default_hugepage_sz = clib_mem_get_default_hugepage_size ();
1356 clib_bitmap_foreach (c, tm->cpu_socket_bitmap, (
1360 vec_validate(mem_by_socket, c);
1361 n_pages = round_pow2 ((uword) mem_by_socket[c]<<20,
1362 default_hugepage_sz);
1363 n_pages /= default_hugepage_sz;
1365 if ((e = clib_sysfs_prealloc_hugepages(c, 0, n_pages)))
1366 clib_error_report (e);
1370 if (mem_by_socket == 0)
1372 error = clib_error_return (0, "mem_by_socket NULL");
1375 _vec_len (mem_by_socket) = c + 1;
1377 /* regenerate socket_mem string */
1378 vec_foreach_index (x, mem_by_socket)
1379 socket_mem = format (socket_mem, "%s%u",
1380 socket_mem ? "," : "", mem_by_socket[x]);
1381 socket_mem = format (socket_mem, "%c", 0);
1383 vec_free (mem_by_socket);
1385 error = vlib_unix_recursive_mkdir ((char *) huge_dir_path);
1391 rv = mount ("none", (char *) huge_dir_path, "hugetlbfs", 0, NULL);
1395 error = clib_error_return (0, "mount failed %d", errno);
1399 tmp = format (0, "--huge-dir%c", 0);
1400 vec_add1 (conf->eal_init_args, tmp);
1401 tmp = format (0, "%s%c", huge_dir_path, 0);
1402 vec_add1 (conf->eal_init_args, tmp);
1405 tmp = format (0, "--file-prefix%c", 0);
1406 vec_add1 (conf->eal_init_args, tmp);
1407 tmp = format (0, "vpp%c", 0);
1408 vec_add1 (conf->eal_init_args, tmp);
1415 /* I'll bet that -c and -n must be the first and second args... */
1416 if (!conf->coremask_set_manually)
1418 vlib_thread_registration_t *tr;
1419 uword *coremask = 0;
1422 /* main thread core */
1423 coremask = clib_bitmap_set (coremask, tm->main_lcore, 1);
1425 for (i = 0; i < vec_len (tm->registrations); i++)
1427 tr = tm->registrations[i];
1428 coremask = clib_bitmap_or (coremask, tr->coremask);
1431 vec_insert (conf->eal_init_args, 2, 1);
1432 conf->eal_init_args[1] = (u8 *) "-c";
1433 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1434 conf->eal_init_args[2] = tmp;
1435 clib_bitmap_free (coremask);
1438 if (!conf->nchannels_set_manually)
1440 vec_insert (conf->eal_init_args, 2, 3);
1441 conf->eal_init_args[3] = (u8 *) "-n";
1442 tmp = format (0, "%d", conf->nchannels);
1443 conf->eal_init_args[4] = tmp;
1446 if (no_pci == 0 && geteuid () == 0)
1447 dpdk_bind_devices_to_uio (conf);
1449 if (no_vmbus == 0 && geteuid () == 0)
1450 dpdk_bind_vmbus_devices_to_uio (conf);
1453 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1454 devconf->x = conf->default_devconf.x ;
1457 pool_foreach (devconf, conf->dev_confs, ({
1459 /* default per-device config items */
1460 foreach_dpdk_device_config_item
1462 /* add DPDK EAL whitelist/blacklist entry */
1463 if (num_whitelisted > 0 && devconf->is_blacklisted == 0)
1465 tmp = format (0, "-w%c", 0);
1466 vec_add1 (conf->eal_init_args, tmp);
1467 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1468 vec_add1 (conf->eal_init_args, tmp);
1470 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0)
1472 tmp = format (0, "-b%c", 0);
1473 vec_add1 (conf->eal_init_args, tmp);
1474 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1475 vec_add1 (conf->eal_init_args, tmp);
1482 /* set master-lcore */
1483 tmp = format (0, "--master-lcore%c", 0);
1484 vec_add1 (conf->eal_init_args, tmp);
1485 tmp = format (0, "%u%c", tm->main_lcore, 0);
1486 vec_add1 (conf->eal_init_args, tmp);
1488 /* set socket-mem */
1491 tmp = format (0, "--socket-mem%c", 0);
1492 vec_add1 (conf->eal_init_args, tmp);
1493 tmp = format (0, "%s%c", socket_mem, 0);
1494 vec_add1 (conf->eal_init_args, tmp);
1497 /* NULL terminate the "argv" vector, in case of stupidity */
1498 vec_add1 (conf->eal_init_args, 0);
1499 _vec_len (conf->eal_init_args) -= 1;
1501 /* Set up DPDK eal and packet mbuf pool early. */
1503 rte_log_set_global_level (log_level);
1504 int log_fds[2] = { 0 };
1505 if (pipe (log_fds) == 0)
1507 if (fcntl (log_fds[1], F_SETFL, O_NONBLOCK) == 0)
1509 FILE *f = fdopen (log_fds[1], "a");
1510 if (f && rte_openlog_stream (f) == 0)
1512 clib_file_t t = { 0 };
1513 t.read_function = dpdk_log_read_ready;
1514 t.file_descriptor = log_fds[0];
1515 t.description = format (0, "DPDK logging pipe");
1516 clib_file_add (&file_main, &t);
1526 vm = vlib_get_main ();
1528 /* make copy of args as rte_eal_init tends to mess up with arg array */
1529 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1530 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1531 conf->eal_init_args[i]);
1533 dpdk_log_warn ("EAL init args: %s", conf->eal_init_args_str);
1534 ret = rte_eal_init (vec_len (conf->eal_init_args),
1535 (char **) conf->eal_init_args);
1537 /* lazy umount hugepages */
1538 umount2 ((char *) huge_dir_path, MNT_DETACH);
1539 rmdir ((char *) huge_dir_path);
1540 vec_free (huge_dir_path);
1543 return clib_error_return (0, "rte_eal_init returned %d", ret);
1545 /* set custom ring memory allocator */
1547 struct rte_mempool_ops *ops = NULL;
1549 ops = get_ops_by_name ("ring_sp_sc");
1550 ops->alloc = dpdk_ring_alloc;
1552 ops = get_ops_by_name ("ring_mp_sc");
1553 ops->alloc = dpdk_ring_alloc;
1555 ops = get_ops_by_name ("ring_sp_mc");
1556 ops->alloc = dpdk_ring_alloc;
1558 ops = get_ops_by_name ("ring_mp_mc");
1559 ops->alloc = dpdk_ring_alloc;
1562 /* main thread 1st */
1563 error = dpdk_buffer_pool_create (vm, conf->num_mbufs, rte_socket_id ());
1567 for (i = 0; i < RTE_MAX_LCORE; i++)
1569 error = dpdk_buffer_pool_create (vm, conf->num_mbufs,
1570 rte_lcore_to_socket_id (i));
1579 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1582 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1584 vnet_main_t *vnm = vnet_get_main ();
1585 struct rte_eth_link prev_link = xd->link;
1587 u8 hw_flags_chg = 0;
1589 /* only update link state for PMD interfaces */
1590 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
1593 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1594 clib_memset (&xd->link, 0, sizeof (xd->link));
1595 rte_eth_link_get_nowait (xd->port_id, &xd->link);
1597 if (LINK_STATE_ELOGS)
1599 vlib_main_t *vm = vlib_get_main ();
1600 ELOG_TYPE_DECLARE (e) =
1603 "update-link-state: sw_if_index %d, admin_up %d,"
1604 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1613 ed = ELOG_DATA (&vm->elog_main, e);
1614 ed->sw_if_index = xd->sw_if_index;
1615 ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1616 ed->old_link_state = (u8)
1617 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
1618 ed->new_link_state = (u8) xd->link.link_status;
1621 if ((xd->flags & (DPDK_DEVICE_FLAG_ADMIN_UP | DPDK_DEVICE_FLAG_BOND_SLAVE))
1622 && ((xd->link.link_status != 0) ^
1623 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index)))
1626 hw_flags |= (xd->link.link_status ? VNET_HW_INTERFACE_FLAG_LINK_UP : 0);
1629 if (hw_flags_chg || (xd->link.link_duplex != prev_link.link_duplex))
1632 switch (xd->link.link_duplex)
1634 case ETH_LINK_HALF_DUPLEX:
1635 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1637 case ETH_LINK_FULL_DUPLEX:
1638 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1644 if (xd->link.link_speed != prev_link.link_speed)
1645 vnet_hw_interface_set_link_speed (vnm, xd->hw_if_index,
1646 xd->link.link_speed * 1000);
1650 if (LINK_STATE_ELOGS)
1652 vlib_main_t *vm = vlib_get_main ();
1654 ELOG_TYPE_DECLARE (e) =
1657 "update-link-state: sw_if_index %d, new flags %d",.format_args
1665 ed = ELOG_DATA (&vm->elog_main, e);
1666 ed->sw_if_index = xd->sw_if_index;
1667 ed->flags = hw_flags;
1669 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, hw_flags);
1674 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1676 clib_error_t *error;
1677 vnet_main_t *vnm = vnet_get_main ();
1678 dpdk_main_t *dm = &dpdk_main;
1679 ethernet_main_t *em = ðernet_main;
1681 vlib_thread_main_t *tm = vlib_get_thread_main ();
1685 error = dpdk_lib_init (dm);
1688 clib_error_report (error);
1690 tm->worker_thread_release = 1;
1692 f64 now = vlib_time_now (vm);
1693 vec_foreach (xd, dm->devices)
1695 dpdk_update_link_state (xd, now);
1700 * Extra set up for bond interfaces:
1701 * 1. Setup MACs for bond interfaces and their slave links which was set
1702 * in dpdk_device_setup() but needs to be done again here to take
1704 * 2. Set up info and register slave link state change callback handling.
1705 * 3. Set up info for bond interface related CLI support.
1707 int nports = rte_eth_dev_count_avail ();
1711 RTE_ETH_FOREACH_DEV(i)
1714 for (j = 0; j < nports; j++)
1716 if (dm->devices[j].port_id == i)
1718 xd = &dm->devices[j];
1721 if (xd != NULL && xd->pmd == VNET_DPDK_PMD_BOND)
1724 dpdk_portid_t slink[16];
1725 int nlink = rte_eth_bond_slaves_get (i, slink, 16);
1728 vnet_hw_interface_t *bhi;
1729 ethernet_interface_t *bei;
1732 /* Get MAC of 1st slave link */
1734 (slink[0], (struct ether_addr *) addr);
1736 /* Set MAC of bounded interface to that of 1st slave link */
1737 dpdk_log_info ("Set MAC for bond port %d BondEthernet%d",
1738 i, xd->bond_instance_num);
1739 rv = rte_eth_bond_mac_address_set
1740 (i, (struct ether_addr *) addr);
1742 dpdk_log_warn ("Set MAC addr failure rv=%d", rv);
1744 /* Populate MAC of bonded interface in VPP hw tables */
1745 bhi = vnet_get_hw_interface
1746 (vnm, dm->devices[i].hw_if_index);
1747 bei = pool_elt_at_index
1748 (em->interfaces, bhi->hw_instance);
1749 clib_memcpy (bhi->hw_address, addr, 6);
1750 clib_memcpy (bei->address, addr, 6);
1752 /* Init l3 packet size allowed on bonded interface */
1753 bhi->max_packet_bytes = ETHERNET_MAX_PACKET_BYTES;
1755 { /* for all slave links */
1756 int slave = slink[--nlink];
1757 dpdk_device_t *sdev = &dm->devices[slave];
1758 vnet_hw_interface_t *shi;
1759 vnet_sw_interface_t *ssi;
1760 ethernet_interface_t *sei;
1761 /* Add MAC to all slave links except the first one */
1764 dpdk_log_info ("Add MAC for slave port %d",
1766 rv = rte_eth_dev_mac_addr_add
1767 (slave, (struct ether_addr *) addr, 0);
1769 dpdk_log_warn ("Add MAC addr failure rv=%d",
1772 /* Setup slave link state change callback handling */
1773 rte_eth_dev_callback_register
1774 (slave, RTE_ETH_EVENT_INTR_LSC,
1775 dpdk_port_state_callback, NULL);
1776 dpdk_device_t *sxd = &dm->devices[slave];
1777 sxd->flags |= DPDK_DEVICE_FLAG_BOND_SLAVE;
1779 /* Set slaves bitmap for bonded interface */
1780 bhi->bond_info = clib_bitmap_set
1781 (bhi->bond_info, sdev->hw_if_index, 1);
1782 /* Set MACs and slave link flags on slave interface */
1783 shi = vnet_get_hw_interface (vnm, sdev->hw_if_index);
1784 ssi = vnet_get_sw_interface (vnm, sdev->sw_if_index);
1785 sei = pool_elt_at_index
1786 (em->interfaces, shi->hw_instance);
1787 shi->bond_info = VNET_HW_INTERFACE_BOND_INFO_SLAVE;
1788 ssi->flags |= VNET_SW_INTERFACE_FLAG_BOND_SLAVE;
1789 clib_memcpy (shi->hw_address, addr, 6);
1790 clib_memcpy (sei->address, addr, 6);
1791 /* Set l3 packet size allowed as the lowest of slave */
1792 if (bhi->max_packet_bytes > shi->max_packet_bytes)
1793 bhi->max_packet_bytes = shi->max_packet_bytes;
1805 * check each time through the loop in case intervals are changed
1807 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1808 dm->link_state_poll_interval : dm->stat_poll_interval;
1810 vlib_process_wait_for_event_or_clock (vm, min_wait);
1812 if (dm->admin_up_down_in_progress)
1813 /* skip the poll if an admin up down is in progress (on any interface) */
1816 vec_foreach (xd, dm->devices)
1818 f64 now = vlib_time_now (vm);
1819 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1820 dpdk_update_counters (xd, now);
1821 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1822 dpdk_update_link_state (xd, now);
1831 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1832 .function = dpdk_process,
1833 .type = VLIB_NODE_TYPE_PROCESS,
1834 .name = "dpdk-process",
1835 .process_log2_n_stack_bytes = 17,
1839 static clib_error_t *
1840 dpdk_init (vlib_main_t * vm)
1842 dpdk_main_t *dm = &dpdk_main;
1843 clib_error_t *error = 0;
1845 /* verify that structs are cacheline aligned */
1846 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1847 "Cache line marker must be 1st element in dpdk_device_t");
1848 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1849 CLIB_CACHE_LINE_BYTES,
1850 "Data in cache line 0 is bigger than cache line size");
1851 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1852 "Cache line marker must be 1st element in frame_queue_trace_t");
1853 STATIC_ASSERT (RTE_CACHE_LINE_SIZE == 1 << CLIB_LOG2_CACHE_LINE_BYTES,
1854 "DPDK RTE CACHE LINE SIZE does not match with 1<<CLIB_LOG2_CACHE_LINE_BYTES");
1857 dm->vnet_main = vnet_get_main ();
1858 dm->conf = &dpdk_config_main;
1860 dm->conf->nchannels = 4;
1861 dm->conf->num_mbufs = dm->conf->num_mbufs ? dm->conf->num_mbufs : NB_MBUF;
1862 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1864 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1865 dm->buffer_flags_template = (VLIB_BUFFER_TOTAL_LENGTH_VALID |
1866 VLIB_BUFFER_EXT_HDR_VALID |
1867 VNET_BUFFER_F_L4_CHECKSUM_COMPUTED |
1868 VNET_BUFFER_F_L4_CHECKSUM_CORRECT);
1870 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1871 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1874 if ((error = vlib_call_init_function (vm, dpdk_cli_init)))
1877 dm->log_default = vlib_log_register_class ("dpdk", 0);
1882 VLIB_INIT_FUNCTION (dpdk_init);
1886 * fd.io coding-style-patch-verification: ON
1889 * eval: (c-set-style "gnu")