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>
21 #include <vnet/ethernet/ethernet.h>
22 #include <vnet/devices/dpdk/dpdk.h>
23 #include <vlib/unix/physmem.h>
24 #include <vlib/pci/pci.h>
30 #include <sys/mount.h>
34 #include "dpdk_priv.h"
36 dpdk_main_t dpdk_main;
38 /* force linker to link functions used by vlib and declared weak */
39 void *vlib_weakly_linked_functions[] = {
41 &rte_pktmbuf_pool_init,
44 #define LINK_STATE_ELOGS 0
46 #define DEFAULT_HUGE_DIR "/run/vpp/hugepages"
47 #define VPP_RUN_DIR "/run/vpp"
49 /* Port configuration, mildly modified Intel app values */
51 static struct rte_eth_conf port_conf_template = {
54 .header_split = 0, /**< Header Split disabled */
55 .hw_ip_checksum = 0, /**< IP checksum offload disabled */
56 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
57 .hw_strip_crc = 0, /**< CRC stripped by hardware */
60 .mq_mode = ETH_MQ_TX_NONE,
65 dpdk_port_setup (dpdk_main_t * dm, dpdk_device_t * xd)
67 vlib_main_t *vm = vlib_get_main ();
68 vlib_buffer_main_t *bm = vm->buffer_main;
72 ASSERT (os_get_cpu_number () == 0);
76 vnet_hw_interface_set_flags (dm->vnet_main, xd->vlib_hw_if_index, 0);
77 rte_eth_dev_stop (xd->device_index);
80 rv = rte_eth_dev_configure (xd->device_index, xd->rx_q_used,
81 xd->tx_q_used, &xd->port_conf);
84 return clib_error_return (0, "rte_eth_dev_configure[%d]: err %d",
85 xd->device_index, rv);
87 /* Set up one TX-queue per worker thread */
88 for (j = 0; j < xd->tx_q_used; j++)
90 rv = rte_eth_tx_queue_setup (xd->device_index, j, xd->nb_tx_desc,
91 xd->cpu_socket, &xd->tx_conf);
93 /* retry with any other CPU socket */
95 rv = rte_eth_tx_queue_setup (xd->device_index, j, xd->nb_tx_desc,
96 SOCKET_ID_ANY, &xd->tx_conf);
102 return clib_error_return (0, "rte_eth_tx_queue_setup[%d]: err %d",
103 xd->device_index, rv);
105 for (j = 0; j < xd->rx_q_used; j++)
108 rv = rte_eth_rx_queue_setup (xd->device_index, j, xd->nb_rx_desc,
111 pktmbuf_pools[xd->cpu_socket_id_by_queue
114 /* retry with any other CPU socket */
116 rv = rte_eth_rx_queue_setup (xd->device_index, j, xd->nb_rx_desc,
119 pktmbuf_pools[xd->cpu_socket_id_by_queue
122 return clib_error_return (0, "rte_eth_rx_queue_setup[%d]: err %d",
123 xd->device_index, rv);
129 rv = rte_eth_dev_start (xd->device_index);
131 clib_warning ("rte_eth_dev_start %d returned %d",
132 xd->device_index, rv);
138 dpdk_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hi, u32 flags)
140 dpdk_main_t *dm = &dpdk_main;
141 dpdk_device_t *xd = vec_elt_at_index (dm->devices, hi->dev_instance);
144 if (ETHERNET_INTERFACE_FLAG_CONFIG_PROMISC (flags))
147 xd->promisc = flags & ETHERNET_INTERFACE_FLAG_ACCEPT_ALL;
152 rte_eth_promiscuous_enable (xd->device_index);
154 rte_eth_promiscuous_disable (xd->device_index);
157 else if (ETHERNET_INTERFACE_FLAG_CONFIG_MTU (flags))
160 * DAW-FIXME: The Cisco VIC firmware does not provide an api for a
161 * driver to dynamically change the mtu. If/when the
162 * VIC firmware gets fixed, then this should be removed.
164 if (xd->pmd == VNET_DPDK_PMD_ENIC)
166 struct rte_eth_dev_info dev_info;
169 * Restore mtu to what has been set by CIMC in the firmware cfg.
171 rte_eth_dev_info_get (xd->device_index, &dev_info);
172 hi->max_packet_bytes = dev_info.max_rx_pktlen;
174 vlib_cli_output (vlib_get_main (),
175 "Cisco VIC mtu can only be changed "
176 "using CIMC then rebooting the server!");
182 xd->port_conf.rxmode.max_rx_pkt_len = hi->max_packet_bytes;
185 rte_eth_dev_stop (xd->device_index);
187 rv = rte_eth_dev_configure
188 (xd->device_index, xd->rx_q_used, xd->tx_q_used, &xd->port_conf);
191 vlib_cli_output (vlib_get_main (),
192 "rte_eth_dev_configure[%d]: err %d",
193 xd->device_index, rv);
195 rte_eth_dev_set_mtu (xd->device_index, hi->max_packet_bytes);
199 int rv = rte_eth_dev_start (xd->device_index);
201 clib_warning ("rte_eth_dev_start %d returned %d",
202 xd->device_index, rv);
210 dpdk_device_lock_init (dpdk_device_t * xd)
213 vec_validate (xd->lockp, xd->tx_q_used - 1);
214 for (q = 0; q < xd->tx_q_used; q++)
216 xd->lockp[q] = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
217 CLIB_CACHE_LINE_BYTES);
218 memset ((void *) xd->lockp[q], 0, CLIB_CACHE_LINE_BYTES);
224 dpdk_device_lock_free (dpdk_device_t * xd)
228 for (q = 0; q < vec_len (xd->lockp); q++)
229 clib_mem_free ((void *) xd->lockp[q]);
230 vec_free (xd->lockp);
235 static clib_error_t *
236 dpdk_lib_init (dpdk_main_t * dm)
242 vlib_main_t *vm = vlib_get_main ();
243 vlib_thread_main_t *tm = vlib_get_thread_main ();
244 vlib_node_runtime_t *rt;
245 vnet_sw_interface_t *sw;
246 vnet_hw_interface_t *hi;
248 vlib_pci_addr_t last_pci_addr;
249 u32 last_pci_addr_port = 0;
250 vlib_thread_registration_t *tr;
254 u8 af_packet_port_id = 0;
255 last_pci_addr.as_u32 = ~0;
257 dm->input_cpu_first_index = 0;
258 dm->input_cpu_count = 1;
260 rt = vlib_node_get_runtime (vm, dpdk_input_node.index);
261 rt->function = dpdk_input_multiarch_select ();
263 /* find out which cpus will be used for input */
264 p = hash_get_mem (tm->thread_registrations_by_name, "workers");
265 tr = p ? (vlib_thread_registration_t *) p[0] : 0;
267 if (tr && tr->count > 0)
269 dm->input_cpu_first_index = tr->first_index;
270 dm->input_cpu_count = tr->count;
273 vec_validate_aligned (dm->devices_by_cpu, tm->n_vlib_mains - 1,
274 CLIB_CACHE_LINE_BYTES);
276 vec_validate_aligned (dm->workers, tm->n_vlib_mains - 1,
277 CLIB_CACHE_LINE_BYTES);
279 nports = rte_eth_dev_count ();
282 clib_warning ("DPDK drivers found no ports...");
286 clib_warning ("DPDK drivers found %d ports...", nports);
289 * All buffers are all allocated from the same rte_mempool.
290 * Thus they all have the same number of data bytes.
292 dm->vlib_buffer_free_list_index =
293 vlib_buffer_get_or_create_free_list (vm,
294 VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES,
297 if (dm->conf->enable_tcp_udp_checksum)
298 dm->buffer_flags_template &= ~(IP_BUFFER_L4_CHECKSUM_CORRECT
299 | IP_BUFFER_L4_CHECKSUM_COMPUTED);
301 for (i = 0; i < nports; i++)
306 struct rte_eth_dev_info dev_info;
308 struct rte_eth_link l;
309 dpdk_device_config_t *devconf = 0;
310 vlib_pci_addr_t pci_addr;
313 rte_eth_dev_info_get (i, &dev_info);
314 if (dev_info.pci_dev) /* bonded interface has no pci info */
316 pci_addr.domain = dev_info.pci_dev->addr.domain;
317 pci_addr.bus = dev_info.pci_dev->addr.bus;
318 pci_addr.slot = dev_info.pci_dev->addr.devid;
319 pci_addr.function = dev_info.pci_dev->addr.function;
321 hash_get (dm->conf->device_config_index_by_pci_addr,
326 devconf = pool_elt_at_index (dm->conf->dev_confs, p[0]);
328 devconf = &dm->conf->default_devconf;
330 /* Create vnet interface */
331 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
332 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
333 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
334 xd->cpu_socket = (i8) rte_eth_dev_socket_id (i);
336 /* Handle interface naming for devices with multiple ports sharing same PCI ID */
337 if (dev_info.pci_dev)
339 struct rte_eth_dev_info di = { 0 };
340 rte_eth_dev_info_get (i + 1, &di);
341 if (di.pci_dev && pci_addr.as_u32 != last_pci_addr.as_u32 &&
342 memcmp (&dev_info.pci_dev->addr, &di.pci_dev->addr,
343 sizeof (struct rte_pci_addr)) == 0)
345 xd->interface_name_suffix = format (0, "0");
346 last_pci_addr.as_u32 = pci_addr.as_u32;
347 last_pci_addr_port = i;
349 else if (pci_addr.as_u32 == last_pci_addr.as_u32)
351 xd->interface_name_suffix =
352 format (0, "%u", i - last_pci_addr_port);
356 last_pci_addr.as_u32 = ~0;
360 last_pci_addr.as_u32 = ~0;
362 clib_memcpy (&xd->tx_conf, &dev_info.default_txconf,
363 sizeof (struct rte_eth_txconf));
364 if (dm->conf->no_multi_seg)
366 xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
367 port_conf_template.rxmode.jumbo_frame = 0;
371 xd->tx_conf.txq_flags &= ~ETH_TXQ_FLAGS_NOMULTSEGS;
372 port_conf_template.rxmode.jumbo_frame = 1;
375 clib_memcpy (&xd->port_conf, &port_conf_template,
376 sizeof (struct rte_eth_conf));
378 xd->tx_q_used = clib_min (dev_info.max_tx_queues, tm->n_vlib_mains);
380 if (devconf->num_tx_queues > 0
381 && devconf->num_tx_queues < xd->tx_q_used)
382 xd->tx_q_used = clib_min (xd->tx_q_used, devconf->num_tx_queues);
384 if (devconf->num_rx_queues > 1 && dm->use_rss == 0)
386 rt->function = dpdk_input_rss_multiarch_select ();
390 if (devconf->num_rx_queues > 1
391 && dev_info.max_rx_queues >= devconf->num_rx_queues)
393 xd->rx_q_used = devconf->num_rx_queues;
394 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
395 if (devconf->rss_fn == 0)
396 xd->port_conf.rx_adv_conf.rss_conf.rss_hf =
397 ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
399 xd->port_conf.rx_adv_conf.rss_conf.rss_hf = devconf->rss_fn;
404 xd->dev_type = VNET_DPDK_DEV_ETH;
406 /* workaround for drivers not setting driver_name */
407 if ((!dev_info.driver_name) && (dev_info.pci_dev))
408 dev_info.driver_name = dev_info.pci_dev->driver->name;
409 ASSERT (dev_info.driver_name);
415 #define _(s,f) else if (dev_info.driver_name && \
416 !strcmp(dev_info.driver_name, s)) \
417 xd->pmd = VNET_DPDK_PMD_##f;
423 xd->pmd = VNET_DPDK_PMD_UNKNOWN;
429 case VNET_DPDK_PMD_E1000EM:
430 case VNET_DPDK_PMD_IGB:
431 case VNET_DPDK_PMD_IGBVF:
432 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
436 case VNET_DPDK_PMD_IXGBE:
437 case VNET_DPDK_PMD_IXGBEVF:
438 case VNET_DPDK_PMD_THUNDERX:
439 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
440 xd->nb_rx_desc = DPDK_NB_RX_DESC_10GE;
441 xd->nb_tx_desc = DPDK_NB_TX_DESC_10GE;
443 case VNET_DPDK_PMD_DPAA2:
444 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
448 case VNET_DPDK_PMD_ENIC:
449 rte_eth_link_get_nowait (i, &l);
450 xd->nb_rx_desc = DPDK_NB_RX_DESC_ENIC;
451 if (l.link_speed == 40000)
453 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
454 xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
458 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
459 xd->nb_tx_desc = DPDK_NB_TX_DESC_10GE;
463 /* Intel Fortville */
464 case VNET_DPDK_PMD_I40E:
465 case VNET_DPDK_PMD_I40EVF:
466 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
467 xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE;
468 xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
470 switch (dev_info.pci_dev->id.device_id)
472 case I40E_DEV_ID_10G_BASE_T:
473 case I40E_DEV_ID_SFP_XL710:
474 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
476 case I40E_DEV_ID_QSFP_A:
477 case I40E_DEV_ID_QSFP_B:
478 case I40E_DEV_ID_QSFP_C:
479 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
482 rte_eth_link_get_nowait (i, &l);
483 xd->port_type = l.link_speed == 10000 ?
484 VNET_DPDK_PORT_TYPE_ETH_10G : VNET_DPDK_PORT_TYPE_ETH_40G;
487 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
491 case VNET_DPDK_PMD_CXGBE:
492 switch (dev_info.pci_dev->id.device_id)
494 case 0x540d: /* T580-CR */
495 case 0x5410: /* T580-LP-cr */
496 xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE;
497 xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
498 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
500 case 0x5403: /* T540-CR */
501 xd->nb_rx_desc = DPDK_NB_RX_DESC_10GE;
502 xd->nb_tx_desc = DPDK_NB_TX_DESC_10GE;
503 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
506 xd->nb_rx_desc = DPDK_NB_RX_DESC_10GE;
507 xd->nb_tx_desc = DPDK_NB_TX_DESC_10GE;
508 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
512 /* Intel Red Rock Canyon */
513 case VNET_DPDK_PMD_FM10K:
514 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
515 xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE;
516 xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
520 case VNET_DPDK_PMD_VIRTIO:
521 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
522 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
523 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
527 case VNET_DPDK_PMD_VMXNET3:
528 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
529 xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
532 case VNET_DPDK_PMD_AF_PACKET:
533 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
534 xd->af_packet_port_id = af_packet_port_id++;
537 case VNET_DPDK_PMD_BOND:
538 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_BOND;
542 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
545 if (devconf->num_rx_desc)
546 xd->nb_rx_desc = devconf->num_rx_desc;
548 if (devconf->num_tx_desc)
549 xd->nb_tx_desc = devconf->num_tx_desc;
553 * Ensure default mtu is not > the mtu read from the hardware.
554 * Otherwise rte_eth_dev_configure() will fail and the port will
557 if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
560 * This device does not support the platforms's max frame
561 * size. Use it's advertised mru instead.
563 xd->port_conf.rxmode.max_rx_pkt_len = dev_info.max_rx_pktlen;
567 xd->port_conf.rxmode.max_rx_pkt_len = ETHERNET_MAX_PACKET_BYTES;
570 * Some platforms do not account for Ethernet FCS (4 bytes) in
571 * MTU calculations. To interop with them increase mru but only
572 * if the device's settings can support it.
574 if ((dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)) &&
575 xd->port_conf.rxmode.hw_strip_crc)
578 * Allow additional 4 bytes (for Ethernet FCS). These bytes are
579 * stripped by h/w and so will not consume any buffer memory.
581 xd->port_conf.rxmode.max_rx_pkt_len += 4;
585 #if RTE_VERSION < RTE_VERSION_NUM(16, 4, 0, 0)
587 * Older VMXNET3 driver doesn't support jumbo / multi-buffer pkts
589 if (xd->pmd == VNET_DPDK_PMD_VMXNET3)
591 xd->port_conf.rxmode.max_rx_pkt_len = 1518;
592 xd->port_conf.rxmode.jumbo_frame = 0;
596 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
598 f64 now = vlib_time_now (vm);
600 rnd = (u32) (now * 1e6);
601 rnd = random_u32 (&rnd);
602 clib_memcpy (addr + 2, &rnd, sizeof (rnd));
607 rte_eth_macaddr_get (i, (struct ether_addr *) addr);
609 if (xd->tx_q_used < tm->n_vlib_mains)
610 dpdk_device_lock_init (xd);
612 xd->device_index = xd - dm->devices;
613 ASSERT (i == xd->device_index);
614 xd->per_interface_next_index = ~0;
616 /* assign interface to input thread */
617 dpdk_device_and_queue_t *dq;
620 if (devconf->workers)
625 clib_bitmap_foreach (i, devconf->workers, ({
626 int cpu = dm->input_cpu_first_index + i;
627 unsigned lcore = vlib_worker_threads[cpu].dpdk_lcore_id;
628 vec_validate(xd->cpu_socket_id_by_queue, q);
629 xd->cpu_socket_id_by_queue[q] = rte_lcore_to_socket_id(lcore);
630 vec_add2(dm->devices_by_cpu[cpu], dq, 1);
631 dq->device = xd->device_index;
637 for (q = 0; q < xd->rx_q_used; q++)
639 int cpu = dm->input_cpu_first_index + next_cpu;
640 unsigned lcore = vlib_worker_threads[cpu].dpdk_lcore_id;
643 * numa node for worker thread handling this queue
644 * needed for taking buffers from the right mempool
646 vec_validate (xd->cpu_socket_id_by_queue, q);
647 xd->cpu_socket_id_by_queue[q] = rte_lcore_to_socket_id (lcore);
650 * construct vector of (device,queue) pairs for each worker thread
652 vec_add2 (dm->devices_by_cpu[cpu], dq, 1);
653 dq->device = xd->device_index;
657 if (next_cpu == dm->input_cpu_count)
661 vec_validate_aligned (xd->tx_vectors, tm->n_vlib_mains,
662 CLIB_CACHE_LINE_BYTES);
663 for (j = 0; j < tm->n_vlib_mains; j++)
665 vec_validate_ha (xd->tx_vectors[j], DPDK_TX_RING_SIZE,
666 sizeof (tx_ring_hdr_t), CLIB_CACHE_LINE_BYTES);
667 vec_reset_length (xd->tx_vectors[j]);
670 vec_validate_aligned (xd->rx_vectors, xd->rx_q_used,
671 CLIB_CACHE_LINE_BYTES);
672 for (j = 0; j < xd->rx_q_used; j++)
674 vec_validate_aligned (xd->rx_vectors[j], VLIB_FRAME_SIZE - 1,
675 CLIB_CACHE_LINE_BYTES);
676 vec_reset_length (xd->rx_vectors[j]);
679 rv = dpdk_port_setup (dm, xd);
684 /* count the number of descriptors used for this device */
685 nb_desc += xd->nb_rx_desc + xd->nb_tx_desc * xd->tx_q_used;
687 error = ethernet_register_interface
688 (dm->vnet_main, dpdk_device_class.index, xd->device_index,
689 /* ethernet address */ addr,
690 &xd->vlib_hw_if_index, dpdk_flag_change);
694 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->vlib_hw_if_index);
695 xd->vlib_sw_if_index = sw->sw_if_index;
696 hi = vnet_get_hw_interface (dm->vnet_main, xd->vlib_hw_if_index);
699 * DAW-FIXME: The Cisco VIC firmware does not provide an api for a
700 * driver to dynamically change the mtu. If/when the
701 * VIC firmware gets fixed, then this should be removed.
703 if (xd->pmd == VNET_DPDK_PMD_ENIC)
706 * Initialize mtu to what has been set by CIMC in the firmware cfg.
708 hi->max_packet_bytes = dev_info.max_rx_pktlen;
709 if (devconf->vlan_strip_offload != DPDK_DEVICE_VLAN_STRIP_OFF)
710 vlan_strip = 1; /* remove vlan tag from VIC port by default */
712 clib_warning ("VLAN strip disabled for interface\n");
714 else if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
720 vlan_off = rte_eth_dev_get_vlan_offload (xd->device_index);
721 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
722 if (rte_eth_dev_set_vlan_offload (xd->device_index, vlan_off) == 0)
723 clib_warning ("VLAN strip enabled for interface\n");
725 clib_warning ("VLAN strip cannot be supported by interface\n");
728 #if RTE_VERSION < RTE_VERSION_NUM(16, 4, 0, 0)
730 * Older VMXNET3 driver doesn't support jumbo / multi-buffer pkts
732 else if (xd->pmd == VNET_DPDK_PMD_VMXNET3)
733 hi->max_packet_bytes = 1518;
736 hi->max_l3_packet_bytes[VLIB_RX] = hi->max_l3_packet_bytes[VLIB_TX] =
737 xd->port_conf.rxmode.max_rx_pkt_len - sizeof (ethernet_header_t);
739 rte_eth_dev_set_mtu (xd->device_index, hi->max_packet_bytes);
742 #ifdef RTE_LIBRTE_KNI
743 if (dm->conf->num_kni)
745 clib_warning ("Initializing KNI interfaces...");
746 rte_kni_init (dm->conf->num_kni);
747 for (i = 0; i < dm->conf->num_kni; i++)
752 /* Create vnet interface */
753 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
754 xd->dev_type = VNET_DPDK_DEV_KNI;
756 xd->device_index = xd - dm->devices;
757 ASSERT (nports + i == xd->device_index);
758 xd->per_interface_next_index = ~0;
761 hash_set (dm->dpdk_device_by_kni_port_id, i, xd - dm->devices);
764 /* assign interface to input thread */
765 dpdk_device_and_queue_t *dq;
766 vec_add2 (dm->devices_by_cpu[dm->input_cpu_first_index], dq, 1);
767 dq->device = xd->device_index;
770 vec_validate_aligned (xd->tx_vectors, tm->n_vlib_mains,
771 CLIB_CACHE_LINE_BYTES);
772 for (j = 0; j < tm->n_vlib_mains; j++)
774 vec_validate_ha (xd->tx_vectors[j], DPDK_TX_RING_SIZE,
775 sizeof (tx_ring_hdr_t), CLIB_CACHE_LINE_BYTES);
776 vec_reset_length (xd->tx_vectors[j]);
779 vec_validate_aligned (xd->rx_vectors, xd->rx_q_used,
780 CLIB_CACHE_LINE_BYTES);
781 for (j = 0; j < xd->rx_q_used; j++)
783 vec_validate_aligned (xd->rx_vectors[j], VLIB_FRAME_SIZE - 1,
784 CLIB_CACHE_LINE_BYTES);
785 vec_reset_length (xd->rx_vectors[j]);
788 /* FIXME Set up one TX-queue per worker thread */
791 f64 now = vlib_time_now (vm);
793 rnd = (u32) (now * 1e6);
794 rnd = random_u32 (&rnd);
796 clib_memcpy (addr + 2, &rnd, sizeof (rnd));
801 error = ethernet_register_interface
802 (dm->vnet_main, dpdk_device_class.index, xd->device_index,
803 /* ethernet address */ addr,
804 &xd->vlib_hw_if_index, dpdk_flag_change);
809 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->vlib_hw_if_index);
810 xd->vlib_sw_if_index = sw->sw_if_index;
811 hi = vnet_get_hw_interface (dm->vnet_main, xd->vlib_hw_if_index);
816 if (nb_desc > dm->conf->num_mbufs)
817 clib_warning ("%d mbufs allocated but total rx/tx ring size is %d\n",
818 dm->conf->num_mbufs, nb_desc);
820 /* init next vhost-user if index */
821 dm->next_vu_if_id = 0;
827 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
829 vlib_pci_main_t *pm = &pci_main;
831 vlib_pci_device_t *d;
832 pci_config_header_t *c;
834 int num_whitelisted = vec_len (conf->dev_confs);
837 pool_foreach (d, pm->pci_devs, ({
838 dpdk_device_config_t * devconf = 0;
839 c = &d->config0.header;
840 vec_reset_length (pci_addr);
841 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, &d->bus_address, 0);
843 if (c->device_class != PCI_CLASS_NETWORK_ETHERNET)
848 uword * p = hash_get (conf->device_config_index_by_pci_addr, d->bus_address.as_u32);
853 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
857 if (c->vendor_id == 0x1af4 && c->device_id == 0x1000)
860 else if (c->vendor_id == 0x15ad && c->device_id == 0x07b0)
862 /* all Intel devices */
863 else if (c->vendor_id == 0x8086)
866 else if (c->vendor_id == 0x1137 && c->device_id == 0x0043)
869 else if (c->vendor_id == 0x1425 && (c->device_id & 0xe000) == 0x4000)
873 clib_warning ("Unsupported Ethernet PCI device 0x%04x:0x%04x found "
874 "at PCI address %s\n", (u16) c->vendor_id, (u16) c->device_id,
879 error = vlib_pci_bind_to_uio (d, (char *) conf->uio_driver_name);
885 pool_get (conf->dev_confs, devconf);
886 hash_set (conf->device_config_index_by_pci_addr, d->bus_address.as_u32,
887 devconf - conf->dev_confs);
888 devconf->pci_addr.as_u32 = d->bus_address.as_u32;
890 devconf->is_blacklisted = 1;
891 clib_error_report (error);
898 static clib_error_t *
899 dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr,
900 unformat_input_t * input, u8 is_default)
902 clib_error_t *error = 0;
904 dpdk_device_config_t *devconf;
905 unformat_input_t sub_input;
909 devconf = &conf->default_devconf;
913 p = hash_get (conf->device_config_index_by_pci_addr, pci_addr.as_u32);
917 pool_get (conf->dev_confs, devconf);
918 hash_set (conf->device_config_index_by_pci_addr, pci_addr.as_u32,
919 devconf - conf->dev_confs);
922 return clib_error_return (0,
923 "duplicate configuration for PCI address %U",
924 format_vlib_pci_addr, &pci_addr);
927 devconf->pci_addr.as_u32 = pci_addr.as_u32;
932 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
934 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
936 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
938 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
940 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
942 else if (unformat (input, "workers %U", unformat_bitmap_list,
947 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
949 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
953 else if (unformat (input, "vlan-strip-offload off"))
954 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
955 else if (unformat (input, "vlan-strip-offload on"))
956 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
959 error = clib_error_return (0, "unknown input `%U'",
960 format_unformat_error, input);
968 if (devconf->workers && devconf->num_rx_queues == 0)
969 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
970 else if (devconf->workers &&
971 clib_bitmap_count_set_bits (devconf->workers) !=
972 devconf->num_rx_queues)
974 clib_error_return (0,
975 "%U: number of worker threadds must be "
976 "equal to number of rx queues", format_vlib_pci_addr,
982 static clib_error_t *
983 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
985 clib_error_t *error = 0;
986 dpdk_main_t *dm = &dpdk_main;
987 dpdk_config_main_t *conf = &dpdk_config_main;
988 vlib_thread_main_t *tm = vlib_get_thread_main ();
989 dpdk_device_config_t *devconf;
990 vlib_pci_addr_t pci_addr;
991 unformat_input_t sub_input;
993 u8 *rte_cmd = 0, *ethname = 0;
996 int num_whitelisted = 0;
1003 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
1005 // MATT-FIXME: inverted virtio-vhost logic to use virtio by default
1006 conf->use_virtio_vhost = 1;
1008 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1010 /* Prime the pump */
1011 if (unformat (input, "no-hugetlb"))
1013 vec_add1 (conf->eal_init_args, (u8 *) "no-huge");
1017 else if (unformat (input, "enable-tcp-udp-checksum"))
1018 conf->enable_tcp_udp_checksum = 1;
1020 else if (unformat (input, "decimal-interface-names"))
1021 conf->interface_name_format_decimal = 1;
1023 else if (unformat (input, "no-multi-seg"))
1024 conf->no_multi_seg = 1;
1026 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
1030 dpdk_device_config (conf, (vlib_pci_addr_t) (u32) ~ 1, &sub_input,
1038 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
1039 unformat_vlib_cli_sub_input, &sub_input))
1041 error = dpdk_device_config (conf, pci_addr, &sub_input, 0);
1048 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
1050 error = dpdk_device_config (conf, pci_addr, 0, 0);
1057 else if (unformat (input, "num-mbufs %d", &conf->num_mbufs))
1059 else if (unformat (input, "kni %d", &conf->num_kni))
1061 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
1063 else if (unformat (input, "socket-mem %s", &socket_mem))
1067 (input, "vhost-user-coalesce-frames %d",
1068 &conf->vhost_coalesce_frames))
1072 (input, "vhost-user-coalesce-time %f",
1073 &conf->vhost_coalesce_time))
1075 else if (unformat (input, "enable-vhost-user"))
1076 conf->use_virtio_vhost = 0;
1077 else if (unformat (input, "no-pci"))
1080 tmp = format (0, "--no-pci%c", 0);
1081 vec_add1 (conf->eal_init_args, tmp);
1083 else if (unformat (input, "poll-sleep %d", &dm->poll_sleep))
1087 else if (unformat(input, #a)) \
1089 tmp = format (0, "--%s%c", #a, 0); \
1090 vec_add1 (conf->eal_init_args, tmp); \
1092 foreach_eal_double_hyphen_predicate_arg
1095 else if (unformat(input, #a " %s", &s)) \
1097 if (!strncmp(#a, "huge-dir", 8)) \
1099 else if (!strncmp(#a, "file-prefix", 11)) \
1101 tmp = format (0, "--%s%c", #a, 0); \
1102 vec_add1 (conf->eal_init_args, tmp); \
1104 vec_add1 (conf->eal_init_args, s); \
1106 foreach_eal_double_hyphen_arg
1109 else if (unformat(input, #a " %s", &s)) \
1111 tmp = format (0, "-%s%c", #b, 0); \
1112 vec_add1 (conf->eal_init_args, tmp); \
1114 vec_add1 (conf->eal_init_args, s); \
1116 foreach_eal_single_hyphen_arg
1119 else if (unformat(input, #a " %s", &s)) \
1121 tmp = format (0, "-%s%c", #b, 0); \
1122 vec_add1 (conf->eal_init_args, tmp); \
1124 vec_add1 (conf->eal_init_args, s); \
1125 conf->a##_set_manually = 1; \
1127 foreach_eal_single_hyphen_mandatory_arg
1129 else if (unformat (input, "default"))
1134 error = clib_error_return (0, "unknown input `%U'",
1135 format_unformat_error, input);
1140 if (!conf->uio_driver_name)
1141 conf->uio_driver_name = format (0, "igb_uio%c", 0);
1144 * Use 1G huge pages if available.
1146 if (!no_huge && !huge_dir)
1148 u32 x, *mem_by_socket = 0;
1152 u8 less_than_1g = 1;
1155 umount (DEFAULT_HUGE_DIR);
1157 /* Process "socket-mem" parameter value */
1158 if (vec_len (socket_mem))
1160 unformat_input_t in;
1161 unformat_init_vector (&in, socket_mem);
1162 while (unformat_check_input (&in) != UNFORMAT_END_OF_INPUT)
1164 if (unformat (&in, "%u,", &x))
1166 else if (unformat (&in, "%u", &x))
1168 else if (unformat (&in, ","))
1173 vec_add1 (mem_by_socket, x);
1178 /* Note: unformat_free vec_frees(in.buffer), aka socket_mem... */
1179 unformat_free (&in);
1185 clib_bitmap_foreach (c, tm->cpu_socket_bitmap, (
1187 vec_validate(mem_by_socket, c);
1188 mem_by_socket[c] = 256; /* default per-socket mem */
1194 /* check if available enough 1GB pages for each socket */
1196 clib_bitmap_foreach (c, tm->cpu_socket_bitmap, (
1198 u32 pages_avail, page_size, mem;
1201 char * numa_path = "/sys/devices/system/node/node%u/";
1202 char * nonnuma_path = "/sys/kernel/mm/";
1203 char * suffix = "hugepages/hugepages-%ukB/free_hugepages%c";
1205 struct stat sb_numa, sb_nonnuma;
1207 p = format(p, numa_path, c);
1208 if (stat(numa_path, &sb_numa) < 0)
1209 sb_numa.st_mode = 0;
1211 if (stat(nonnuma_path, &sb_nonnuma) < 0)
1212 sb_nonnuma.st_mode = 0;
1214 if (S_ISDIR(sb_numa.st_mode)) {
1215 path = (char*)format((u8*)path, "%s%s", p, suffix);
1216 } else if (S_ISDIR(sb_nonnuma.st_mode)) {
1217 path = (char*)format((u8*)path, "%s%s", nonnuma_path, suffix);
1225 vec_validate(mem_by_socket, c);
1226 mem = mem_by_socket[c];
1230 s = format (s, path, page_size * 1024, 0);
1231 vlib_sysfs_read ((char *) s, "%u", &pages_avail);
1232 vec_reset_length (s);
1234 if (page_size * pages_avail < mem)
1239 s = format (s, path, page_size * 1024, 0);
1240 vlib_sysfs_read ((char *) s, "%u", &pages_avail);
1241 vec_reset_length (s);
1243 if (page_size * pages_avail < mem)
1252 if (mem_by_socket == 0)
1254 error = clib_error_return (0, "mem_by_socket NULL");
1257 _vec_len (mem_by_socket) = c + 1;
1259 /* regenerate socket_mem string */
1260 vec_foreach_index (x, mem_by_socket)
1261 socket_mem = format (socket_mem, "%s%u",
1262 socket_mem ? "," : "", mem_by_socket[x]);
1263 socket_mem = format (socket_mem, "%c", 0);
1265 vec_free (mem_by_socket);
1267 rv = mkdir (VPP_RUN_DIR, 0755);
1268 if (rv && errno != EEXIST)
1270 error = clib_error_return (0, "mkdir '%s' failed errno %d",
1271 VPP_RUN_DIR, errno);
1275 rv = mkdir (DEFAULT_HUGE_DIR, 0755);
1276 if (rv && errno != EEXIST)
1278 error = clib_error_return (0, "mkdir '%s' failed errno %d",
1279 DEFAULT_HUGE_DIR, errno);
1283 if (use_1g && !(less_than_1g && use_2m))
1286 mount ("none", DEFAULT_HUGE_DIR, "hugetlbfs", 0, "pagesize=1G");
1290 rv = mount ("none", DEFAULT_HUGE_DIR, "hugetlbfs", 0, NULL);
1294 return clib_error_return (0, "not enough free huge pages");
1299 error = clib_error_return (0, "mount failed %d", errno);
1303 tmp = format (0, "--huge-dir%c", 0);
1304 vec_add1 (conf->eal_init_args, tmp);
1305 tmp = format (0, "%s%c", DEFAULT_HUGE_DIR, 0);
1306 vec_add1 (conf->eal_init_args, tmp);
1309 tmp = format (0, "--file-prefix%c", 0);
1310 vec_add1 (conf->eal_init_args, tmp);
1311 tmp = format (0, "vpp%c", 0);
1312 vec_add1 (conf->eal_init_args, tmp);
1322 /* I'll bet that -c and -n must be the first and second args... */
1323 if (!conf->coremask_set_manually)
1325 vlib_thread_registration_t *tr;
1326 uword *coremask = 0;
1329 /* main thread core */
1330 coremask = clib_bitmap_set (coremask, tm->main_lcore, 1);
1332 for (i = 0; i < vec_len (tm->registrations); i++)
1334 tr = tm->registrations[i];
1335 coremask = clib_bitmap_or (coremask, tr->coremask);
1338 vec_insert (conf->eal_init_args, 2, 1);
1339 conf->eal_init_args[1] = (u8 *) "-c";
1340 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1341 conf->eal_init_args[2] = tmp;
1342 clib_bitmap_free (coremask);
1345 if (!conf->nchannels_set_manually)
1347 vec_insert (conf->eal_init_args, 2, 3);
1348 conf->eal_init_args[3] = (u8 *) "-n";
1349 tmp = format (0, "%d", conf->nchannels);
1350 conf->eal_init_args[4] = tmp;
1353 if (no_pci == 0 && geteuid () == 0)
1354 dpdk_bind_devices_to_uio (conf);
1357 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1358 devconf->x = conf->default_devconf.x ;
1361 pool_foreach (devconf, conf->dev_confs, ({
1363 /* default per-device config items */
1364 foreach_dpdk_device_config_item
1366 /* add DPDK EAL whitelist/blacklist entry */
1367 if (num_whitelisted > 0 && devconf->is_blacklisted == 0)
1369 tmp = format (0, "-w%c", 0);
1370 vec_add1 (conf->eal_init_args, tmp);
1371 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1372 vec_add1 (conf->eal_init_args, tmp);
1374 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0)
1376 tmp = format (0, "-b%c", 0);
1377 vec_add1 (conf->eal_init_args, tmp);
1378 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1379 vec_add1 (conf->eal_init_args, tmp);
1386 /* set master-lcore */
1387 tmp = format (0, "--master-lcore%c", 0);
1388 vec_add1 (conf->eal_init_args, tmp);
1389 tmp = format (0, "%u%c", tm->main_lcore, 0);
1390 vec_add1 (conf->eal_init_args, tmp);
1392 /* set socket-mem */
1393 tmp = format (0, "--socket-mem%c", 0);
1394 vec_add1 (conf->eal_init_args, tmp);
1395 tmp = format (0, "%s%c", socket_mem, 0);
1396 vec_add1 (conf->eal_init_args, tmp);
1398 /* NULL terminate the "argv" vector, in case of stupidity */
1399 vec_add1 (conf->eal_init_args, 0);
1400 _vec_len (conf->eal_init_args) -= 1;
1402 /* Set up DPDK eal and packet mbuf pool early. */
1404 log_level = (CLIB_DEBUG > 0) ? RTE_LOG_DEBUG : RTE_LOG_NOTICE;
1406 rte_set_log_level (log_level);
1408 vm = vlib_get_main ();
1410 /* make copy of args as rte_eal_init tends to mess up with arg array */
1411 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1412 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1413 conf->eal_init_args[i]);
1416 rte_eal_init (vec_len (conf->eal_init_args),
1417 (char **) conf->eal_init_args);
1419 /* lazy umount hugepages */
1420 umount2 (DEFAULT_HUGE_DIR, MNT_DETACH);
1423 return clib_error_return (0, "rte_eal_init returned %d", ret);
1425 /* Dump the physical memory layout prior to creating the mbuf_pool */
1426 fprintf (stdout, "DPDK physical memory layout:\n");
1427 rte_dump_physmem_layout (stdout);
1429 /* main thread 1st */
1430 error = vlib_buffer_pool_create (vm, conf->num_mbufs, rte_socket_id ());
1434 for (i = 0; i < RTE_MAX_LCORE; i++)
1436 error = vlib_buffer_pool_create (vm, conf->num_mbufs,
1437 rte_lcore_to_socket_id (i));
1446 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1449 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1451 vnet_main_t *vnm = vnet_get_main ();
1452 struct rte_eth_link prev_link = xd->link;
1454 u8 hw_flags_chg = 0;
1456 /* only update link state for PMD interfaces */
1457 if (xd->dev_type != VNET_DPDK_DEV_ETH)
1460 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1461 memset (&xd->link, 0, sizeof (xd->link));
1462 rte_eth_link_get_nowait (xd->device_index, &xd->link);
1464 if (LINK_STATE_ELOGS)
1466 vlib_main_t *vm = vlib_get_main ();
1467 ELOG_TYPE_DECLARE (e) =
1470 "update-link-state: sw_if_index %d, admin_up %d,"
1471 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1480 ed = ELOG_DATA (&vm->elog_main, e);
1481 ed->sw_if_index = xd->vlib_sw_if_index;
1482 ed->admin_up = xd->admin_up;
1483 ed->old_link_state = (u8)
1484 vnet_hw_interface_is_link_up (vnm, xd->vlib_hw_if_index);
1485 ed->new_link_state = (u8) xd->link.link_status;
1488 if ((xd->admin_up == 1) &&
1489 ((xd->link.link_status != 0) ^
1490 vnet_hw_interface_is_link_up (vnm, xd->vlib_hw_if_index)))
1493 hw_flags |= (xd->link.link_status ? VNET_HW_INTERFACE_FLAG_LINK_UP : 0);
1496 if (hw_flags_chg || (xd->link.link_duplex != prev_link.link_duplex))
1499 switch (xd->link.link_duplex)
1501 case ETH_LINK_HALF_DUPLEX:
1502 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1504 case ETH_LINK_FULL_DUPLEX:
1505 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1511 #if RTE_VERSION >= RTE_VERSION_NUM(16, 4, 0, 0)
1512 if (hw_flags_chg || (xd->link.link_speed != prev_link.link_speed))
1515 switch (xd->link.link_speed)
1517 case ETH_SPEED_NUM_10M:
1518 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10M;
1520 case ETH_SPEED_NUM_100M:
1521 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_100M;
1523 case ETH_SPEED_NUM_1G:
1524 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_1G;
1526 case ETH_SPEED_NUM_10G:
1527 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10G;
1529 case ETH_SPEED_NUM_40G:
1530 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_40G;
1535 clib_warning ("unknown link speed %d", xd->link.link_speed);
1540 if (hw_flags_chg || (xd->link.link_speed != prev_link.link_speed))
1543 switch (xd->link.link_speed)
1545 case ETH_LINK_SPEED_10:
1546 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10M;
1548 case ETH_LINK_SPEED_100:
1549 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_100M;
1551 case ETH_LINK_SPEED_1000:
1552 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_1G;
1554 case ETH_LINK_SPEED_10000:
1555 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10G;
1557 case ETH_LINK_SPEED_40G:
1558 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_40G;
1563 clib_warning ("unknown link speed %d", xd->link.link_speed);
1570 if (LINK_STATE_ELOGS)
1572 vlib_main_t *vm = vlib_get_main ();
1574 ELOG_TYPE_DECLARE (e) =
1577 "update-link-state: sw_if_index %d, new flags %d",.format_args
1585 ed = ELOG_DATA (&vm->elog_main, e);
1586 ed->sw_if_index = xd->vlib_sw_if_index;
1587 ed->flags = hw_flags;
1589 vnet_hw_interface_set_flags (vnm, xd->vlib_hw_if_index, hw_flags);
1594 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1596 clib_error_t *error;
1597 vnet_main_t *vnm = vnet_get_main ();
1598 dpdk_main_t *dm = &dpdk_main;
1599 ethernet_main_t *em = ðernet_main;
1601 vlib_thread_main_t *tm = vlib_get_thread_main ();
1607 error = dpdk_lib_init (dm);
1610 * Turn on the input node if we found some devices to drive
1611 * and we're not running worker threads or i/o threads
1614 if (error == 0 && vec_len (dm->devices) > 0)
1616 if (tm->n_vlib_mains == 1)
1617 vlib_node_set_state (vm, dpdk_input_node.index,
1618 VLIB_NODE_STATE_POLLING);
1620 for (i = 0; i < tm->n_vlib_mains; i++)
1621 if (vec_len (dm->devices_by_cpu[i]) > 0)
1622 vlib_node_set_state (vlib_mains[i], dpdk_input_node.index,
1623 VLIB_NODE_STATE_POLLING);
1627 clib_error_report (error);
1630 dpdk_vhost_user_process_init (&vu_state);
1633 tm->worker_thread_release = 1;
1635 f64 now = vlib_time_now (vm);
1636 vec_foreach (xd, dm->devices)
1638 dpdk_update_link_state (xd, now);
1643 * Extra set up for bond interfaces:
1644 * 1. Setup MACs for bond interfaces and their slave links which was set
1645 * in dpdk_port_setup() but needs to be done again here to take effect.
1646 * 2. Set up info for bond interface related CLI support.
1648 int nports = rte_eth_dev_count ();
1651 for (i = 0; i < nports; i++)
1653 struct rte_eth_dev_info dev_info;
1654 rte_eth_dev_info_get (i, &dev_info);
1655 if (!dev_info.driver_name)
1656 dev_info.driver_name = dev_info.pci_dev->driver->name;
1657 ASSERT (dev_info.driver_name);
1658 if (strncmp (dev_info.driver_name, "rte_bond_pmd", 12) == 0)
1662 int nlink = rte_eth_bond_slaves_get (i, slink, 16);
1665 vnet_hw_interface_t *bhi;
1666 ethernet_interface_t *bei;
1669 /* Get MAC of 1st slave link */
1670 rte_eth_macaddr_get (slink[0],
1671 (struct ether_addr *) addr);
1672 /* Set MAC of bounded interface to that of 1st slave link */
1674 rte_eth_bond_mac_address_set (i,
1675 (struct ether_addr *)
1678 clib_warning ("Failed to set MAC address");
1680 /* Populate MAC of bonded interface in VPP hw tables */
1682 vnet_get_hw_interface (vnm,
1683 dm->devices[i].vlib_hw_if_index);
1685 pool_elt_at_index (em->interfaces, bhi->hw_instance);
1686 clib_memcpy (bhi->hw_address, addr, 6);
1687 clib_memcpy (bei->address, addr, 6);
1688 /* Init l3 packet size allowed on bonded interface */
1689 bhi->max_l3_packet_bytes[VLIB_RX] =
1690 bhi->max_l3_packet_bytes[VLIB_TX] =
1691 ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
1693 { /* for all slave links */
1694 int slave = slink[--nlink];
1695 dpdk_device_t *sdev = &dm->devices[slave];
1696 vnet_hw_interface_t *shi;
1697 vnet_sw_interface_t *ssi;
1698 /* Add MAC to all slave links except the first one */
1700 rte_eth_dev_mac_addr_add (slave,
1701 (struct ether_addr *)
1703 /* Set slaves bitmap for bonded interface */
1705 clib_bitmap_set (bhi->bond_info,
1706 sdev->vlib_hw_if_index, 1);
1707 /* Set slave link flags on slave interface */
1709 vnet_get_hw_interface (vnm, sdev->vlib_hw_if_index);
1711 vnet_get_sw_interface (vnm, sdev->vlib_sw_if_index);
1712 shi->bond_info = VNET_HW_INTERFACE_BOND_INFO_SLAVE;
1713 ssi->flags |= VNET_SW_INTERFACE_FLAG_BOND_SLAVE;
1724 * check each time through the loop in case intervals are changed
1726 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1727 dm->link_state_poll_interval : dm->stat_poll_interval;
1729 vlib_process_wait_for_event_or_clock (vm, min_wait);
1731 if (dpdk_get_admin_up_down_in_progress ())
1732 /* skip the poll if an admin up down is in progress (on any interface) */
1735 vec_foreach (xd, dm->devices)
1737 f64 now = vlib_time_now (vm);
1738 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1739 dpdk_update_counters (xd, now);
1740 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1741 dpdk_update_link_state (xd, now);
1744 if (xd->dev_type == VNET_DPDK_DEV_VHOST_USER)
1745 if (dpdk_vhost_user_process_if (vm, xd, vu_state) != 0)
1752 dpdk_vhost_user_process_cleanup (vu_state);
1759 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1760 .function = dpdk_process,
1761 .type = VLIB_NODE_TYPE_PROCESS,
1762 .name = "dpdk-process",
1763 .process_log2_n_stack_bytes = 17,
1768 dpdk_set_stat_poll_interval (f64 interval)
1770 if (interval < DPDK_MIN_STATS_POLL_INTERVAL)
1771 return (VNET_API_ERROR_INVALID_VALUE);
1773 dpdk_main.stat_poll_interval = interval;
1779 dpdk_set_link_state_poll_interval (f64 interval)
1781 if (interval < DPDK_MIN_LINK_POLL_INTERVAL)
1782 return (VNET_API_ERROR_INVALID_VALUE);
1784 dpdk_main.link_state_poll_interval = interval;
1790 dpdk_init (vlib_main_t * vm)
1792 dpdk_main_t *dm = &dpdk_main;
1794 clib_error_t *error = 0;
1795 vlib_thread_main_t *tm = vlib_get_thread_main ();
1797 /* verify that structs are cacheline aligned */
1798 ASSERT (offsetof (dpdk_device_t, cacheline0) == 0);
1799 ASSERT (offsetof (dpdk_device_t, cacheline1) == CLIB_CACHE_LINE_BYTES);
1800 ASSERT (offsetof (dpdk_worker_t, cacheline0) == 0);
1801 ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0);
1804 dm->vnet_main = vnet_get_main ();
1805 dm->conf = &dpdk_config_main;
1807 ei = vlib_get_node_by_name (vm, (u8 *) "ethernet-input");
1809 return clib_error_return (0, "ethernet-input node AWOL");
1811 dm->ethernet_input_node_index = ei->index;
1813 dm->conf->nchannels = 4;
1814 dm->conf->num_mbufs = dm->conf->num_mbufs ? dm->conf->num_mbufs : NB_MBUF;
1815 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1817 dm->dpdk_device_by_kni_port_id = hash_create (0, sizeof (uword));
1818 dm->vu_sw_if_index_by_listener_fd = hash_create (0, sizeof (uword));
1819 dm->vu_sw_if_index_by_sock_fd = hash_create (0, sizeof (uword));
1821 /* $$$ use n_thread_stacks since it's known-good at this point */
1822 vec_validate (dm->recycle, tm->n_thread_stacks - 1);
1824 /* initialize EFD (early fast discard) default settings */
1825 dm->efd.enabled = DPDK_EFD_DISABLED;
1826 dm->efd.queue_hi_thresh = ((DPDK_EFD_DEFAULT_DEVICE_QUEUE_HI_THRESH_PCT *
1827 DPDK_NB_RX_DESC_10GE) / 100);
1828 dm->efd.consec_full_frames_hi_thresh =
1829 DPDK_EFD_DEFAULT_CONSEC_FULL_FRAMES_HI_THRESH;
1831 /* vhost-user coalescence frames defaults */
1832 dm->conf->vhost_coalesce_frames = 32;
1833 dm->conf->vhost_coalesce_time = 1e-3;
1835 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1836 dm->buffer_flags_template =
1837 (VLIB_BUFFER_TOTAL_LENGTH_VALID
1838 | IP_BUFFER_L4_CHECKSUM_COMPUTED | IP_BUFFER_L4_CHECKSUM_CORRECT);
1840 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1841 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1844 if ((error = vlib_call_init_function (vm, dpdk_cli_init)))
1850 VLIB_INIT_FUNCTION (dpdk_init);
1854 * fd.io coding-style-patch-verification: ON
1857 * eval: (c-set-style "gnu")