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>
20 #include <vnet/ethernet/ethernet.h>
21 #include <vnet/devices/dpdk/dpdk.h>
22 #include <vlib/unix/physmem.h>
28 #include <sys/mount.h>
32 #include "dpdk_priv.h"
34 dpdk_main_t dpdk_main;
36 /* force linker to link functions used by vlib and declared weak */
37 void *vlib_weakly_linked_functions[] = {
39 &rte_pktmbuf_pool_init,
42 #define LINK_STATE_ELOGS 0
44 #define DEFAULT_HUGE_DIR "/run/vpp/hugepages"
45 #define VPP_RUN_DIR "/run/vpp"
47 /* Port configuration, mildly modified Intel app values */
49 static struct rte_eth_conf port_conf_template = {
52 .header_split = 0, /**< Header Split disabled */
53 .hw_ip_checksum = 0, /**< IP checksum offload disabled */
54 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
55 .hw_strip_crc = 1, /**< CRC stripped by hardware */
58 .mq_mode = ETH_MQ_TX_NONE,
63 dpdk_port_setup (dpdk_main_t * dm, dpdk_device_t * xd)
65 vlib_main_t * vm = vlib_get_main();
66 vlib_buffer_main_t * bm = vm->buffer_main;
70 ASSERT(os_get_cpu_number() == 0);
73 vnet_hw_interface_set_flags (dm->vnet_main, xd->vlib_hw_if_index, 0);
74 rte_eth_dev_stop (xd->device_index);
77 rv = rte_eth_dev_configure (xd->device_index, xd->rx_q_used,
78 xd->tx_q_used, &xd->port_conf);
81 return clib_error_return (0, "rte_eth_dev_configure[%d]: err %d",
82 xd->device_index, rv);
84 /* Set up one TX-queue per worker thread */
85 for (j = 0; j < xd->tx_q_used; j++)
87 rv = rte_eth_tx_queue_setup(xd->device_index, j, xd->nb_tx_desc,
88 xd->cpu_socket, &xd->tx_conf);
94 return clib_error_return (0, "rte_eth_tx_queue_setup[%d]: err %d",
95 xd->device_index, rv);
97 for (j = 0; j < xd->rx_q_used; j++)
100 rv = rte_eth_rx_queue_setup(xd->device_index, j, xd->nb_rx_desc,
102 bm->pktmbuf_pools[xd->cpu_socket_id_by_queue[j]]);
104 return clib_error_return (0, "rte_eth_rx_queue_setup[%d]: err %d",
105 xd->device_index, rv);
109 rte_eth_dev_start (xd->device_index);
114 static u32 dpdk_flag_change (vnet_main_t * vnm,
115 vnet_hw_interface_t * hi,
118 dpdk_main_t * dm = &dpdk_main;
119 dpdk_device_t * xd = vec_elt_at_index (dm->devices, hi->dev_instance);
122 if (ETHERNET_INTERFACE_FLAG_CONFIG_PROMISC(flags))
125 xd->promisc = flags & ETHERNET_INTERFACE_FLAG_ACCEPT_ALL;
130 rte_eth_promiscuous_enable(xd->device_index);
132 rte_eth_promiscuous_disable(xd->device_index);
135 else if (ETHERNET_INTERFACE_FLAG_CONFIG_MTU(flags))
138 * DAW-FIXME: The Cisco VIC firmware does not provide an api for a
139 * driver to dynamically change the mtu. If/when the
140 * VIC firmware gets fixed, then this should be removed.
142 if (xd->pmd == VNET_DPDK_PMD_VICE ||
143 xd->pmd == VNET_DPDK_PMD_ENIC)
145 struct rte_eth_dev_info dev_info;
148 * Restore mtu to what has been set by CIMC in the firmware cfg.
150 rte_eth_dev_info_get(xd->device_index, &dev_info);
151 hi->max_packet_bytes = dev_info.max_rx_pktlen;
153 vlib_cli_output (vlib_get_main(),
154 "Cisco VIC mtu can only be changed "
155 "using CIMC then rebooting the server!");
162 * DAW-FIXME: The DPDK VMXNET3 driver does not currently support
163 * multi-buffer packets. Max out at 1518 bytes for now.
165 * If/when the driver gets fixed, then this should be
168 if ((xd->pmd == VNET_DPDK_PMD_VMXNET3) &&
169 (hi->max_packet_bytes > 1518))
171 hi->max_packet_bytes = 1518;
173 vlib_cli_output (vlib_get_main(),
174 "VMXNET3 driver does not support jumbo frames "
175 "yet -- setting mtu to 1518!");
178 xd->port_conf.rxmode.max_rx_pkt_len = hi->max_packet_bytes;
181 rte_eth_dev_stop (xd->device_index);
183 rv = rte_eth_dev_configure
190 vlib_cli_output (vlib_get_main(),
191 "rte_eth_dev_configure[%d]: err %d",
192 xd->device_index, rv);
194 rte_eth_dev_set_mtu(xd->device_index, hi->max_packet_bytes);
197 rte_eth_dev_start (xd->device_index);
204 extern int rte_netmap_probe(void);
207 static clib_error_t *
208 dpdk_lib_init (dpdk_main_t * dm)
213 clib_error_t * error;
214 vlib_main_t * vm = vlib_get_main();
215 vlib_thread_main_t * tm = vlib_get_thread_main();
216 vnet_sw_interface_t * sw;
217 vnet_hw_interface_t * hi;
219 vlib_thread_registration_t * tr;
223 u8 af_packet_port_id = 0;
225 dm->input_cpu_first_index = 0;
226 dm->input_cpu_count = 1;
228 /* find out which cpus will be used for input */
229 p = hash_get_mem (tm->thread_registrations_by_name, "io");
230 tr = p ? (vlib_thread_registration_t *) p[0] : 0;
232 if (!tr || tr->count == 0)
234 /* no io threads, workers doing input */
235 p = hash_get_mem (tm->thread_registrations_by_name, "workers");
236 tr = p ? (vlib_thread_registration_t *) p[0] : 0;
240 dm->have_io_threads = 1;
243 if (tr && tr->count > 0)
245 dm->input_cpu_first_index = tr->first_index;
246 dm->input_cpu_count = tr->count;
249 vec_validate_aligned (dm->devices_by_cpu, tm->n_vlib_mains - 1,
250 CLIB_CACHE_LINE_BYTES);
252 vec_validate_aligned (dm->workers, tm->n_vlib_mains - 1,
253 CLIB_CACHE_LINE_BYTES);
256 if(rte_netmap_probe() < 0)
257 return clib_error_return (0, "rte netmap probe failed");
260 nports = rte_eth_dev_count();
263 clib_warning ("DPDK drivers found no ports...");
267 clib_warning ("DPDK drivers found %d ports...", nports);
270 * All buffers are all allocated from the same rte_mempool.
271 * Thus they all have the same number of data bytes.
273 dm->vlib_buffer_free_list_index =
274 vlib_buffer_get_or_create_free_list (
275 vm, VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES, "dpdk rx");
277 for (i = 0; i < nports; i++)
281 struct rte_eth_dev_info dev_info;
283 struct rte_eth_link l;
285 /* Create vnet interface */
286 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
287 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
288 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
289 xd->cpu_socket = (i8) rte_eth_dev_socket_id(i);
290 rte_eth_dev_info_get(i, &dev_info);
292 memcpy(&xd->tx_conf, &dev_info.default_txconf,
293 sizeof(struct rte_eth_txconf));
294 if (dm->no_multi_seg)
296 xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
297 port_conf_template.rxmode.jumbo_frame = 0;
301 xd->tx_conf.txq_flags &= ~ETH_TXQ_FLAGS_NOMULTSEGS;
302 port_conf_template.rxmode.jumbo_frame = 1;
305 memcpy(&xd->port_conf, &port_conf_template, sizeof(struct rte_eth_conf));
307 xd->tx_q_used = dev_info.max_tx_queues < tm->n_vlib_mains ?
308 1 : tm->n_vlib_mains;
310 if (dm->use_rss > 1 && dev_info.max_rx_queues >= dm->use_rss)
312 xd->rx_q_used = dm->use_rss;
313 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
314 xd->port_conf.rx_adv_conf.rss_conf.rss_hf = ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
319 xd->dev_type = VNET_DPDK_DEV_ETH;
323 #define _(s,f) else if (!strcmp(dev_info.driver_name, s)) \
324 xd->pmd = VNET_DPDK_PMD_##f;
330 xd->pmd = VNET_DPDK_PMD_UNKNOWN;
335 case VNET_DPDK_PMD_E1000EM:
336 case VNET_DPDK_PMD_IGB:
337 case VNET_DPDK_PMD_IGBVF:
338 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
342 case VNET_DPDK_PMD_IXGBE:
343 case VNET_DPDK_PMD_IXGBEVF:
344 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
345 xd->nb_rx_desc = DPDK_NB_RX_DESC_10GE;
346 xd->nb_tx_desc = DPDK_NB_TX_DESC_10GE;
350 case VNET_DPDK_PMD_VICE:
351 case VNET_DPDK_PMD_ENIC:
352 rte_eth_link_get_nowait(xd->device_index, &l);
353 if (l.link_speed == 40000)
355 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
356 xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE;
357 xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
361 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
362 xd->nb_rx_desc = DPDK_NB_RX_DESC_10GE;
363 xd->nb_tx_desc = DPDK_NB_TX_DESC_10GE;
367 /* Intel Fortville */
368 case VNET_DPDK_PMD_I40E:
369 case VNET_DPDK_PMD_I40EVF:
370 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
371 xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE;
372 xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
374 switch (dev_info.pci_dev->id.device_id) {
375 case I40E_DEV_ID_10G_BASE_T:
376 case I40E_DEV_ID_SFP_XL710:
377 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
379 case I40E_DEV_ID_QSFP_A:
380 case I40E_DEV_ID_QSFP_B:
381 case I40E_DEV_ID_QSFP_C:
382 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
385 rte_eth_link_get_nowait(xd->device_index, &l);
386 xd->port_type = l.link_speed == 10000 ?
387 VNET_DPDK_PORT_TYPE_ETH_10G : VNET_DPDK_PORT_TYPE_ETH_40G;
390 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
394 /* Intel Red Rock Canyon */
395 case VNET_DPDK_PMD_FM10K:
396 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
397 xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE;
398 xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
402 case VNET_DPDK_PMD_VIRTIO:
403 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
404 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
405 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
409 case VNET_DPDK_PMD_VMXNET3:
410 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
411 xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
414 case VNET_DPDK_PMD_AF_PACKET:
415 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
416 xd->af_packet_port_id = af_packet_port_id++;
420 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
424 if(strncmp(dev_info.driver_name, "vale", 4) == 0
425 || strncmp(dev_info.driver_name, "netmap", 6) == 0)
427 xd->pmd = VNET_DPDK_PMD_NETMAP;
428 xd->port_type = VNET_DPDK_PORT_TYPE_NETMAP;
435 * Ensure default mtu is not > the mtu read from the hardware.
436 * Otherwise rte_eth_dev_configure() will fail and the port will
439 xd->port_conf.rxmode.max_rx_pkt_len =
440 (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen) ?
441 dev_info.max_rx_pktlen : ETHERNET_MAX_PACKET_BYTES;
444 * DAW-FIXME: VMXNET3 driver doesn't support jumbo / multi-buffer pkts
446 if (xd->pmd == VNET_DPDK_PMD_VMXNET3)
448 xd->port_conf.rxmode.max_rx_pkt_len = 1518;
449 xd->port_conf.rxmode.jumbo_frame = 0;
452 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
454 f64 now = vlib_time_now(vm);
456 rnd = (u32) (now * 1e6);
457 rnd = random_u32 (&rnd);
458 memcpy (addr+2, &rnd, sizeof(rnd));
463 rte_eth_macaddr_get(i,(struct ether_addr *)addr);
465 if (xd->tx_q_used < tm->n_vlib_mains)
467 xd->lockp = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
468 CLIB_CACHE_LINE_BYTES);
469 memset ((void *) xd->lockp, 0, CLIB_CACHE_LINE_BYTES);
472 xd->device_index = xd - dm->devices;
473 ASSERT(i == xd->device_index);
474 xd->per_interface_next_index = ~0;
476 /* assign interface to input thread */
477 dpdk_device_and_queue_t * dq;
480 for (q = 0; q < xd->rx_q_used; q++)
482 int cpu = dm->input_cpu_first_index + next_cpu;
483 unsigned lcore = vlib_worker_threads[cpu].dpdk_lcore_id;
486 * numa node for worker thread handling this queue
487 * needed for taking buffers from the right mempool
489 vec_validate(xd->cpu_socket_id_by_queue, q);
490 xd->cpu_socket_id_by_queue[q] = rte_lcore_to_socket_id(lcore);
493 * construct vector of (device,queue) pairs for each worker thread
495 vec_add2(dm->devices_by_cpu[cpu], dq, 1);
496 dq->device = xd->device_index;
500 if (next_cpu == dm->input_cpu_count)
504 vec_validate_aligned (xd->tx_vectors, tm->n_vlib_mains,
505 CLIB_CACHE_LINE_BYTES);
506 for (j = 0; j < tm->n_vlib_mains; j++)
508 vec_validate_ha (xd->tx_vectors[j], DPDK_TX_RING_SIZE,
509 sizeof(tx_ring_hdr_t), CLIB_CACHE_LINE_BYTES);
510 vec_reset_length (xd->tx_vectors[j]);
513 vec_validate_aligned (xd->rx_vectors, xd->rx_q_used,
514 CLIB_CACHE_LINE_BYTES);
515 for (j = 0; j< xd->rx_q_used; j++)
517 vec_validate_aligned (xd->rx_vectors[j], VLIB_FRAME_SIZE-1,
518 CLIB_CACHE_LINE_BYTES);
519 vec_reset_length (xd->rx_vectors[j]);
522 vec_validate_aligned (xd->frames, tm->n_vlib_mains,
523 CLIB_CACHE_LINE_BYTES);
525 rv = dpdk_port_setup(dm, xd);
530 /* count the number of descriptors used for this device */
531 nb_desc += xd->nb_rx_desc + xd->nb_tx_desc * xd->tx_q_used;
533 error = ethernet_register_interface
535 dpdk_device_class.index,
537 /* ethernet address */ addr,
538 &xd->vlib_hw_if_index,
543 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->vlib_hw_if_index);
544 xd->vlib_sw_if_index = sw->sw_if_index;
545 hi = vnet_get_hw_interface (dm->vnet_main, xd->vlib_hw_if_index);
548 * DAW-FIXME: The Cisco VIC firmware does not provide an api for a
549 * driver to dynamically change the mtu. If/when the
550 * VIC firmware gets fixed, then this should be removed.
552 if (xd->pmd == VNET_DPDK_PMD_VICE ||
553 xd->pmd == VNET_DPDK_PMD_ENIC)
556 * Initialize mtu to what has been set by CIMC in the firmware cfg.
558 hi->max_packet_bytes = dev_info.max_rx_pktlen;
560 * remove vlan tag from VIC port to fix VLAN0 issue.
561 * TODO Handle VLAN tagged traffic
564 vlan_off = rte_eth_dev_get_vlan_offload(xd->device_index);
565 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
566 rte_eth_dev_set_vlan_offload(xd->device_index, vlan_off);
569 * DAW-FIXME: VMXNET3 driver doesn't support jumbo / multi-buffer pkts
571 else if (xd->pmd == VNET_DPDK_PMD_VMXNET3)
572 hi->max_packet_bytes = 1518;
574 hi->max_l3_packet_bytes[VLIB_RX] = hi->max_l3_packet_bytes[VLIB_TX] =
575 xd->port_conf.rxmode.max_rx_pkt_len - sizeof(ethernet_header_t);
577 rte_eth_dev_set_mtu(xd->device_index, hi->max_packet_bytes);
581 clib_warning("Initializing KNI interfaces...");
582 rte_kni_init(dm->num_kni);
583 for (i = 0; i < dm->num_kni; i++)
588 /* Create vnet interface */
589 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
590 xd->dev_type = VNET_DPDK_DEV_KNI;
592 xd->device_index = xd - dm->devices;
593 ASSERT(nports + i == xd->device_index);
594 xd->per_interface_next_index = ~0;
597 hash_set (dm->dpdk_device_by_kni_port_id, i, xd - dm->devices);
600 /* assign interface to input thread */
601 dpdk_device_and_queue_t * dq;
602 vec_add2(dm->devices_by_cpu[dm->input_cpu_first_index], dq, 1);
603 dq->device = xd->device_index;
606 vec_validate_aligned (xd->tx_vectors, tm->n_vlib_mains,
607 CLIB_CACHE_LINE_BYTES);
608 for (j = 0; j < tm->n_vlib_mains; j++)
610 vec_validate_ha (xd->tx_vectors[j], DPDK_TX_RING_SIZE,
611 sizeof(tx_ring_hdr_t), CLIB_CACHE_LINE_BYTES);
612 vec_reset_length (xd->tx_vectors[j]);
615 vec_validate_aligned (xd->rx_vectors, xd->rx_q_used,
616 CLIB_CACHE_LINE_BYTES);
617 for (j = 0; j< xd->rx_q_used; j++)
619 vec_validate_aligned (xd->rx_vectors[j], VLIB_FRAME_SIZE-1,
620 CLIB_CACHE_LINE_BYTES);
621 vec_reset_length (xd->rx_vectors[j]);
624 vec_validate_aligned (xd->frames, tm->n_vlib_mains,
625 CLIB_CACHE_LINE_BYTES);
627 /* FIXME Set up one TX-queue per worker thread */
630 f64 now = vlib_time_now(vm);
632 rnd = (u32) (now * 1e6);
633 rnd = random_u32 (&rnd);
635 memcpy (addr+2, &rnd, sizeof(rnd));
640 error = ethernet_register_interface
642 dpdk_device_class.index,
644 /* ethernet address */ addr,
645 &xd->vlib_hw_if_index,
651 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->vlib_hw_if_index);
652 xd->vlib_sw_if_index = sw->sw_if_index;
653 hi = vnet_get_hw_interface (dm->vnet_main, xd->vlib_hw_if_index);
657 if (nb_desc > dm->num_mbufs)
658 clib_warning ("%d mbufs allocated but total rx/tx ring size is %d\n",
659 dm->num_mbufs, nb_desc);
661 /* init next vhost-user if index */
662 dm->next_vu_if_id = 0;
668 * Tell the vlib physical memory allocator that we've handled
669 * the initialization. We don't actually do so until
670 * vlib_main(...) callls the dpdk config function.
672 int vlib_app_physmem_init (vlib_main_t * vm, physmem_main_t * pm,
673 int physmem_required)
678 static clib_error_t *
679 write_sys_fs (char * file_name, char * fmt, ...)
684 fd = open (file_name, O_WRONLY);
686 return clib_error_return_unix (0, "open `%s'", file_name);
690 s = va_format (0, fmt, &va);
692 vec_add1 (s, 0); // terminate c string
694 if (write (fd, s, vec_len (s)) < 0)
695 return clib_error_return_unix (0, "write '%s' to '%s'", s, file_name);
702 #define VIRTIO_PCI_NAME "virtio-pci"
704 static clib_error_t * dpdk_bind_eth_kernel_drivers (vlib_main_t * vm,
706 char * kernel_driver)
708 dpdk_main_t * dm = &dpdk_main;
709 unformat_input_t _in;
710 unformat_input_t * in = &_in;
711 clib_error_t * error = 0;
712 u8 * line = 0, * modcmd = 0, * path = 0;
713 u8 * pci_vid = 0, *pci_did = 0, * devname = 0;
714 char *driver_name = kernel_driver;
718 * Bail out now if we're not running as root.
719 * This allows non-privileged use of the packet generator, etc.
725 * Get all ethernet pci device numbers for the device type specified.
727 modcmd = format (0, "lspci -nDd %s | grep 0200 | "
728 "awk '{ print $1, $3 }'%c", pci_dev_id, 0);
729 if ((fp = popen ((const char *)modcmd, "r")) == NULL)
731 error = clib_error_return_unix (0,
732 "Unable to get %s ethernet pci devices.",
737 vec_validate (line, BUFSIZ);
738 vec_validate (path, BUFSIZ);
739 while (fgets ((char *)line, BUFSIZ, fp) != NULL)
743 line[strlen ((char *)line) - 1] = 0; // chomp trailing newline.
745 unformat_init_string (in, (char *)line, strlen((char *)line) + 1);
746 unformat(in, "%s %s:%s", &devname, &pci_vid, &pci_did);
750 * Blacklist all ethernet interfaces in the
751 * linux IP routing tables (route --inet --inet6)
753 if (strstr ((char *)dm->eth_if_blacklist, (char *)devname))
757 * If there are any devices whitelisted, then blacklist all devices
758 * which are not explicitly whitelisted.
760 if (dm->eth_if_whitelist &&
761 !strstr ((char *)dm->eth_if_whitelist, (char *)devname))
766 * Optimistically open the device as a netmap device.
768 if (eth_nm_open((char *)devname))
773 path = format (path, "/sys/bus/pci/devices/%s/driver/unbind%c",
777 * If the device is bound to a driver...
779 if (stat ((const char *)path, &st) == 0)
784 * If the interface is not a virtio...
786 if (!driver_name || strcmp(driver_name, VIRTIO_PCI_NAME))
789 * If it is already bound to driver, don't unbind/bind it.
791 device_path = format (0, "/sys/bus/pci/drivers/%s/%s/device%c",
792 driver_name, devname, 0);
793 if (stat ((const char *)device_path, &st) == 0)
796 vec_free (device_path);
800 * unbind it from the current driver
804 _vec_len (path) -= 1;
805 path = format (path, "%c", 0);
806 error = write_sys_fs ((char *)path, "%s", devname);
813 * DAW-FIXME: The following bind/unbind dance is necessary for the dpdk
814 * virtio poll-mode driver to work.
817 if (driver_name && !strcmp(driver_name, VIRTIO_PCI_NAME))
820 * bind interface to the native kernel module
823 path = format (path, "/sys/bus/pci/drivers/%s/bind%c",
825 error = write_sys_fs ((char *)path, "%s", devname);
830 * unbind interface from the native kernel module
832 _vec_len (path) -= 5;
833 path = format (path, "unbind%c", 0);
834 error = write_sys_fs ((char *)path, "%s", devname);
840 * bind the interface to igb_uio
844 int pci_vendor_id = strtol((char *) pci_vid, NULL, 16);
845 int pci_device_id = strtol((char *) pci_did, NULL, 16);
848 * Set PCI ID to ".../virtio-pci/new_id" for Intel fortvile adapaters
850 if (pci_vendor_id == 0x8086 &&
851 (pci_device_id == I40E_DEV_ID_10G_BASE_T ||
852 pci_device_id == I40E_DEV_ID_SFP_XL710 ||
853 pci_device_id == I40E_DEV_ID_QSFP_A ||
854 pci_device_id == I40E_DEV_ID_QSFP_B ||
855 pci_device_id == I40E_DEV_ID_QSFP_C))
858 path = format (path, "/sys/bus/pci/drivers/%s/new_id%c", driver_name, 0);
859 error = write_sys_fs ((char *) path, "%s %s", pci_vid, pci_did);
865 path = format (path, "/sys/bus/pci/drivers/%s/bind%c", driver_name, 0);
866 error = write_sys_fs ((char *) path, "%s", devname);
887 unformat_socket_mem (unformat_input_t * input, va_list * va)
889 uword ** r = va_arg (* va, uword **);
893 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
895 if (unformat (input, ","))
896 hash_set (*r, i, 1024);
897 else if (unformat (input, "%u,", &mem))
898 hash_set (*r, i, mem);
899 else if (unformat (input, "%u", &mem))
900 hash_set (*r, i, mem);
903 unformat_put_input (input);
914 get_node_free_hugepages_num (u32 node, u32 page_size)
919 tmp = format (0, "/sys/devices/system/node/node%u/hugepages/hugepages-%ukB/"
920 "free_hugepages%c", node, page_size, 0);
921 fp = fopen ((char *) tmp, "r");
929 vec_validate (buffer, 256-1);
930 if (fgets ((char *)buffer, 256, fp))
933 unformat_init_string (&in, (char *) buffer, strlen ((char *) buffer));
934 unformat(&in, "%u", &pages_avail);
945 static clib_error_t *
946 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
948 clib_error_t * error = 0;
949 dpdk_main_t * dm = &dpdk_main;
950 vlib_thread_main_t * tm = vlib_get_thread_main();
953 u8 * rte_cmd = 0, * ethname = 0;
959 int rxrings, txrings, rxslots, txslots, txburst;
962 unformat_input_t _in;
963 unformat_input_t * in = &_in;
970 // MATT-FIXME: inverted virtio-vhost logic to use virtio by default
971 dm->use_virtio_vhost = 1;
973 while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
976 if (unformat (input, "no-hugetlb"))
978 vec_add1 (dm->eal_init_args, (u8 *) "no-huge");
982 else if (unformat (input, "decimal-interface-names"))
983 dm->interface_name_format_decimal = 1;
985 else if (unformat (input, "no-multi-seg"))
986 dm->no_multi_seg = 1;
988 else if (unformat (input, "dev %s", &pci_dev_id))
990 if (dm->eth_if_whitelist)
993 * Don't add duplicate device id's.
995 if (strstr ((char *)dm->eth_if_whitelist, (char *)pci_dev_id))
998 _vec_len (dm->eth_if_whitelist) -= 1; // chomp trailing NULL.
999 dm->eth_if_whitelist = format (dm->eth_if_whitelist, " %s%c",
1003 dm->eth_if_whitelist = format (0, "%s%c", pci_dev_id, 0);
1007 else if (unformat(input, "netmap %s/%d:%d/%d:%d/%d",
1008 &nmname, &rxrings, &rxslots, &txrings, &txslots, &txburst)) {
1011 eth_nm_args(nmname, rxrings, rxslots, txrings, txslots, txburst);
1013 error = clib_error_return (0, "%s", rv);
1016 }else if (unformat(input, "netmap %s", &nmname)) {
1019 eth_nm_args(nmname, 0, 0, 0, 0, 0);
1021 error = clib_error_return (0, "%s", rv);
1027 else if (unformat (input, "num-mbufs %d", &dm->num_mbufs))
1029 else if (unformat (input, "kni %d", &dm->num_kni))
1031 else if (unformat (input, "uio-driver %s", &dm->uio_driver_name))
1033 else if (unformat (input, "vhost-user-coalesce-frames %d", &dm->vhost_coalesce_frames))
1035 else if (unformat (input, "vhost-user-coalesce-time %f", &dm->vhost_coalesce_time))
1037 else if (unformat (input, "enable-vhost-user"))
1038 dm->use_virtio_vhost = 0;
1039 else if (unformat (input, "rss %d", &dm->use_rss))
1043 else if (unformat(input, #a)) \
1045 if (!strncmp(#a, "no-pci", 6)) \
1047 tmp = format (0, "--%s%c", #a, 0); \
1048 vec_add1 (dm->eal_init_args, tmp); \
1050 foreach_eal_double_hyphen_predicate_arg
1054 else if (unformat(input, #a " %s", &s)) \
1056 if (!strncmp(#a, "huge-dir", 8)) \
1058 else if (!strncmp(#a, "file-prefix", 11)) \
1060 else if (!strncmp(#a, "socket-mem", 10)) \
1061 socket_mem = vec_dup (s); \
1062 tmp = format (0, "--%s%c", #a, 0); \
1063 vec_add1 (dm->eal_init_args, tmp); \
1065 vec_add1 (dm->eal_init_args, s); \
1067 foreach_eal_double_hyphen_arg
1071 else if (unformat(input, #a " %s", &s)) \
1073 tmp = format (0, "-%s%c", #b, 0); \
1074 vec_add1 (dm->eal_init_args, tmp); \
1076 vec_add1 (dm->eal_init_args, s); \
1078 foreach_eal_single_hyphen_arg
1082 else if (unformat(input, #a " %s", &s)) \
1084 tmp = format (0, "-%s%c", #b, 0); \
1085 vec_add1 (dm->eal_init_args, tmp); \
1087 vec_add1 (dm->eal_init_args, s); \
1088 dm->a##_set_manually = 1; \
1090 foreach_eal_single_hyphen_mandatory_arg
1093 else if (unformat(input, "default"))
1098 error = clib_error_return (0, "unknown input `%U'",
1099 format_unformat_error, input);
1104 if (!dm->uio_driver_name)
1105 dm->uio_driver_name = format (0, "igb_uio");
1108 * Use 1G huge pages if available.
1110 if (!no_huge && !huge_dir)
1112 uword * mem_by_socket = hash_create (0, sizeof (uword));
1118 umount(DEFAULT_HUGE_DIR);
1120 /* Process "socket-mem" parameter value */
1121 if (vec_len (socket_mem))
1123 unformat_input_t in;
1124 unformat_init_vector(&in, socket_mem);
1125 unformat(&in, "%U", unformat_socket_mem, &mem_by_socket);
1131 /* check if available enough 1GB pages for each socket */
1132 clib_bitmap_foreach (c, tm->cpu_socket_bitmap, ({
1133 uword * p = hash_get (mem_by_socket, c);
1139 u32 pages_num_1g = mem / 1024;
1140 u32 pages_num_2m = mem / 2;
1143 pages_avail = get_node_free_hugepages_num(c, 1048576);
1144 if (!(pages_avail >= pages_num_1g))
1147 pages_avail = get_node_free_hugepages_num(c, 2048);
1148 if (!(pages_avail >= pages_num_2m))
1154 hash_free (mem_by_socket);
1156 rv = mkdir(VPP_RUN_DIR, 0755);
1157 if (rv && errno != EEXIST)
1159 error = clib_error_return (0, "mkdir '%s' failed errno %d",
1160 VPP_RUN_DIR, errno);
1164 rv = mkdir(DEFAULT_HUGE_DIR, 0755);
1165 if (rv && errno != EEXIST)
1167 error = clib_error_return (0, "mkdir '%s' failed errno %d",
1168 DEFAULT_HUGE_DIR, errno);
1174 rv = mount("none", DEFAULT_HUGE_DIR, "hugetlbfs", 0, "pagesize=1G");
1178 rv = mount("none", DEFAULT_HUGE_DIR, "hugetlbfs", 0, NULL);
1182 return clib_error_return (0, "not enough free huge pages");
1187 error = clib_error_return (0, "mount failed %d", errno);
1191 tmp = format (0, "--huge-dir%c", 0);
1192 vec_add1 (dm->eal_init_args, tmp);
1193 tmp = format (0, "%s%c", DEFAULT_HUGE_DIR, 0);
1194 vec_add1 (dm->eal_init_args, tmp);
1197 tmp = format (0, "--file-prefix%c", 0);
1198 vec_add1 (dm->eal_init_args, tmp);
1199 tmp = format (0, "vpp%c", 0);
1200 vec_add1 (dm->eal_init_args, tmp);
1205 * Blacklist all ethernet interfaces in the linux IP routing tables.
1207 dm->eth_if_blacklist = format (0, "%c", 0);
1208 rte_cmd = format (0, "route --inet --inet6 -n|awk '{print $7}'|sort -u|"
1209 "egrep $(echo $(ls -1d /sys/class/net/*/device|"
1210 "cut -d/ -f5)|sed -s 's/ /|/g')%c", 0);
1211 if ((rte_fp = popen ((const char *)rte_cmd, "r")) == NULL)
1213 error = clib_error_return_unix (0, "Unable to find blacklist ethernet"
1214 " interface(s) in linux routing tables.");
1219 vec_validate (ethname, BUFSIZ);
1220 while (fgets ((char *)ethname, BUFSIZ, rte_fp) != NULL)
1223 u8 * rlnk_cmd = 0, * devname = 0;
1225 ethname[strlen ((char *)ethname) - 1] = 0; // chomp trailing newline.
1227 rlnk_cmd = format (0, "readlink /sys/class/net/%s%c",
1230 if ((rlnk_fp = popen ((const char *)rlnk_cmd, "r")) == NULL)
1232 error = clib_error_return_unix (0, "Unable to read %s link.",
1237 vec_validate (devname, BUFSIZ);
1238 while (fgets ((char *)devname, BUFSIZ, rlnk_fp) != NULL)
1243 * Extract the device PCI ID name from the link. It is the first
1244 * PCI ID searching backwards from the end of the link pathname.
1246 * readlink /sys/class/net/eth0
1247 * ../../devices/pci0000:00/0000:00:0a.0/virtio4/net/eth0
1249 for (pci_id = (char *)((devname + strlen((char *)devname)));
1250 ((u8 *)pci_id > devname) && *pci_id != '.'; pci_id--)
1254 * Verify that the field found is a valid PCI ID.
1256 if ((*(pci_id - 1) == '.') || ((u8 *)(pci_id - 11) < devname) ||
1257 (*(pci_id - 11) != '/') || (*(pci_id - 3) != ':') ||
1258 (*(pci_id - 6) != ':'))
1260 devname[strlen ((char *)devname) - 1] = 0; // chomp trailing newline.
1261 clib_warning ("Unable to extract %s PCI ID (0x%llx \"%s\") "
1262 "from 0x%llx \"%s\"", ethname, pci_id, pci_id,
1270 /* Don't blacklist any interfaces which have been whitelisted.
1272 if (dm->eth_if_whitelist &&
1273 strstr ((char *)dm->eth_if_whitelist, (char *)pci_id))
1276 _vec_len (dm->eth_if_blacklist) -= 1; // chomp trailing NULL.
1277 dm->eth_if_blacklist = format (dm->eth_if_blacklist, " %s%c",
1283 vec_free (rlnk_cmd);
1295 /* I'll bet that -c and -n must be the first and second args... */
1296 if (!dm->coremask_set_manually)
1298 vlib_thread_registration_t * tr;
1302 /* main thread core */
1303 coremask = 1 << tm->main_lcore;
1305 for (i = 0; i < vec_len (tm->registrations); i++)
1307 tr = tm->registrations[i];
1308 if (clib_bitmap_is_zero(tr->coremask))
1310 coremask |= tr->coremask[0];
1313 vec_insert (dm->eal_init_args, 2, 1);
1314 dm->eal_init_args[1] = (u8 *) "-c";
1315 tmp = format (0, "%x%c", coremask, 0);
1316 dm->eal_init_args[2] = tmp;
1319 if (!dm->nchannels_set_manually)
1321 vec_insert (dm->eal_init_args, 2, 3);
1322 dm->eal_init_args[3] = (u8 *) "-n";
1323 tmp = format (0, "%d", dm->nchannels);
1324 dm->eal_init_args[4] = tmp;
1328 * If there are whitelisted devices,
1329 * add the whitelist option & device list to the dpdk arg list...
1331 if (dm->eth_if_whitelist)
1333 unformat_init_string (in, (char *)dm->eth_if_whitelist,
1334 vec_len(dm->eth_if_whitelist) - 1);
1339 * Otherwise add the blacklisted devices to the dpdk arg list.
1343 unformat_init_string (in, (char *)dm->eth_if_blacklist,
1344 vec_len(dm->eth_if_blacklist) - 1);
1348 while (unformat_check_input (in) != UNFORMAT_END_OF_INPUT)
1350 tmp = format (0, fmt, 0);
1351 vec_add1 (dm->eal_init_args, tmp);
1352 unformat (in, "%s", &pci_dev_id);
1353 vec_add1 (dm->eal_init_args, pci_dev_id);
1359 * Bind Virtio pci devices to the igb_uio kernel driver.
1361 error = dpdk_bind_eth_kernel_drivers (vm, "1af4:1000", VIRTIO_PCI_NAME);
1366 * Bind vmxnet3 pci devices to the igb_uio kernel driver.
1368 error = dpdk_bind_eth_kernel_drivers (vm, "15ad:07b0",
1369 (char *) dm->uio_driver_name);
1374 * Bind Intel ethernet pci devices to igb_uio kernel driver.
1376 error = dpdk_bind_eth_kernel_drivers (vm, "8086:",
1377 (char *) dm->uio_driver_name);
1379 * Bind Cisco VIC ethernet pci devices to igb_uio kernel driver.
1381 error = dpdk_bind_eth_kernel_drivers (vm, "1137:0043",
1382 (char *) dm->uio_driver_name);
1385 /* set master-lcore */
1386 tmp = format (0, "--master-lcore%c", 0);
1387 vec_add1 (dm->eal_init_args, tmp);
1388 tmp = format (0, "%u%c", tm->main_lcore, 0);
1389 vec_add1 (dm->eal_init_args, tmp);
1391 /* NULL terminate the "argv" vector, in case of stupidity */
1392 vec_add1 (dm->eal_init_args, 0);
1393 _vec_len(dm->eal_init_args) -= 1;
1395 /* Set up DPDK eal and packet mbuf pool early. */
1397 log_level = (CLIB_DEBUG > 0) ? RTE_LOG_DEBUG : RTE_LOG_NOTICE;
1399 rte_set_log_level (log_level);
1403 ret = rte_eal_init(vec_len(dm->eal_init_args), (char **) dm->eal_init_args);
1405 /* lazy umount hugepages */
1406 umount2(DEFAULT_HUGE_DIR, MNT_DETACH);
1409 return clib_error_return (0, "rte_eal_init returned %d", ret);
1411 /* main thread 1st */
1412 error = vlib_buffer_pool_create(vm, dm->num_mbufs, MBUF_SIZE, rte_socket_id());
1416 for (i = 0; i < RTE_MAX_LCORE; i++)
1418 error = vlib_buffer_pool_create(vm, dm->num_mbufs, MBUF_SIZE,
1419 rte_lcore_to_socket_id(i));
1426 vlib_node_runtime_t * rt = vlib_node_get_runtime (vm, dpdk_input_node.index);
1427 rt->function = dpdk_input_rss;
1433 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1435 void dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1437 vnet_main_t * vnm = vnet_get_main();
1438 struct rte_eth_link prev_link = xd->link;
1440 u8 hw_flags_chg = 0;
1442 /* only update link state for PMD interfaces */
1443 if (xd->dev_type != VNET_DPDK_DEV_ETH)
1446 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1447 memset(&xd->link, 0, sizeof(xd->link));
1448 rte_eth_link_get_nowait (xd->device_index, &xd->link);
1450 if (LINK_STATE_ELOGS)
1452 vlib_main_t * vm = vlib_get_main();
1453 ELOG_TYPE_DECLARE(e) = {
1455 "update-link-state: sw_if_index %d, admin_up %d,"
1456 "old link_state %d new link_state %d",
1457 .format_args = "i4i1i1i1",
1460 struct { u32 sw_if_index; u8 admin_up;
1461 u8 old_link_state; u8 new_link_state;} *ed;
1462 ed = ELOG_DATA (&vm->elog_main, e);
1463 ed->sw_if_index = xd->vlib_sw_if_index;
1464 ed->admin_up = xd->admin_up;
1465 ed->old_link_state = (u8)
1466 vnet_hw_interface_is_link_up (vnm, xd->vlib_hw_if_index);
1467 ed->new_link_state = (u8) xd->link.link_status;
1470 if ((xd->admin_up == 1) &&
1471 ((xd->link.link_status != 0) ^
1472 vnet_hw_interface_is_link_up (vnm, xd->vlib_hw_if_index)))
1475 hw_flags |= (xd->link.link_status ?
1476 VNET_HW_INTERFACE_FLAG_LINK_UP: 0);
1479 if (hw_flags_chg || (xd->link.link_duplex != prev_link.link_duplex))
1482 switch (xd->link.link_duplex)
1484 case ETH_LINK_HALF_DUPLEX:
1485 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1487 case ETH_LINK_FULL_DUPLEX:
1488 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1494 if (hw_flags_chg || (xd->link.link_speed != prev_link.link_speed))
1497 switch (xd->link.link_speed)
1499 case ETH_LINK_SPEED_10:
1500 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10M;
1502 case ETH_LINK_SPEED_100:
1503 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_100M;
1505 case ETH_LINK_SPEED_1000:
1506 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_1G;
1508 case ETH_LINK_SPEED_10000:
1509 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10G;
1511 case ETH_LINK_SPEED_40G:
1512 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_40G;
1517 clib_warning("unknown link speed %d", xd->link.link_speed);
1523 if (LINK_STATE_ELOGS)
1525 vlib_main_t * vm = vlib_get_main();
1527 ELOG_TYPE_DECLARE(e) = {
1528 .format = "update-link-state: sw_if_index %d, new flags %d",
1529 .format_args = "i4i4",
1532 struct { u32 sw_if_index; u32 flags; } *ed;
1533 ed = ELOG_DATA (&vm->elog_main, e);
1534 ed->sw_if_index = xd->vlib_sw_if_index;
1535 ed->flags = hw_flags;
1537 vnet_hw_interface_set_flags (vnm, xd->vlib_hw_if_index, hw_flags);
1542 dpdk_process (vlib_main_t * vm,
1543 vlib_node_runtime_t * rt,
1546 clib_error_t * error;
1547 dpdk_main_t * dm = &dpdk_main;
1549 vlib_thread_main_t * tm = vlib_get_thread_main();
1553 error = dpdk_lib_init (dm);
1556 * Turn on the input node if we found some devices to drive
1557 * and we're not running worker threads or i/o threads
1560 if (error == 0 && vec_len(dm->devices) > 0)
1562 if (tm->n_vlib_mains == 1)
1563 vlib_node_set_state (vm, dpdk_input_node.index,
1564 VLIB_NODE_STATE_POLLING);
1565 else if (tm->main_thread_is_io_node)
1566 vlib_node_set_state (vm, dpdk_io_input_node.index,
1567 VLIB_NODE_STATE_POLLING);
1568 else if (!dm->have_io_threads)
1569 for (i=0; i < tm->n_vlib_mains; i++)
1570 if (vec_len(dm->devices_by_cpu[i]) > 0)
1571 vlib_node_set_state (vlib_mains[i], dpdk_input_node.index,
1572 VLIB_NODE_STATE_POLLING);
1576 clib_error_report (error);
1578 dpdk_vhost_user_process_init(&vu_state);
1580 dm->io_thread_release = 1;
1582 f64 now = vlib_time_now (vm);
1583 vec_foreach (xd, dm->devices)
1585 dpdk_update_link_state (xd, now);
1590 vlib_process_wait_for_event_or_clock (vm, 5.0);
1592 if (dpdk_get_admin_up_down_in_progress())
1593 /* skip the poll if an admin up down is in progress (on any interface) */
1596 vec_foreach (xd, dm->devices)
1598 f64 now = vlib_time_now (vm);
1599 if ((now - xd->time_last_stats_update) >= DPDK_STATS_POLL_INTERVAL)
1600 dpdk_update_counters (xd, now);
1601 if ((now - xd->time_last_link_update) >= DPDK_LINK_POLL_INTERVAL)
1602 dpdk_update_link_state (xd, now);
1604 if (xd->dev_type == VNET_DPDK_DEV_VHOST_USER)
1605 if (dpdk_vhost_user_process_if(vm, xd, vu_state) != 0)
1610 dpdk_vhost_user_process_cleanup(vu_state);
1615 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1616 .function = dpdk_process,
1617 .type = VLIB_NODE_TYPE_PROCESS,
1618 .name = "dpdk-process",
1619 .process_log2_n_stack_bytes = 17,
1623 dpdk_init (vlib_main_t * vm)
1625 dpdk_main_t * dm = &dpdk_main;
1627 clib_error_t * error = 0;
1628 vlib_thread_main_t * tm = vlib_get_thread_main();
1630 /* verify that structs are cacheline aligned */
1631 ASSERT(offsetof(dpdk_device_t, cacheline0) == 0);
1632 ASSERT(offsetof(dpdk_device_t, cacheline1) == CLIB_CACHE_LINE_BYTES);
1633 ASSERT(offsetof(dpdk_worker_t, cacheline0) == 0);
1634 ASSERT(offsetof(frame_queue_trace_t, cacheline0) == 0);
1636 /* Add references to DPDK Driver Constructor functions to get the dynamic
1637 * loader to pull in the driver library & run the constructors.
1641 void devinitfn_ ##d(void); \
1642 __attribute__((unused)) void (* volatile pf)(void); \
1643 pf = devinitfn_ ##d; \
1646 #ifdef RTE_LIBRTE_EM_PMD
1650 #ifdef RTE_LIBRTE_IGB_PMD
1654 #ifdef RTE_LIBRTE_IXGBE_PMD
1658 #ifdef RTE_LIBRTE_I40E_PMD
1660 _(rte_i40evf_driver)
1663 #ifdef RTE_LIBRTE_FM10K_PMD
1667 #ifdef RTE_LIBRTE_VIRTIO_PMD
1668 _(rte_virtio_driver)
1671 #ifdef RTE_LIBRTE_VMXNET3_PMD
1672 _(rte_vmxnet3_driver)
1675 #ifdef RTE_LIBRTE_VICE_PMD
1679 #ifdef RTE_LIBRTE_ENIC_PMD
1683 #ifdef RTE_LIBRTE_PMD_AF_PACKET
1684 _(pmd_af_packet_drv)
1690 dm->vnet_main = vnet_get_main();
1692 ei = vlib_get_node_by_name (vm, (u8 *) "ethernet-input");
1694 return clib_error_return (0, "ethernet-input node AWOL");
1696 dm->ethernet_input_node_index = ei->index;
1699 dm->num_mbufs = dm->num_mbufs ? dm->num_mbufs : NB_MBUF;
1700 vec_add1 (dm->eal_init_args, (u8 *) "vnet");
1702 dm->dpdk_device_by_kni_port_id = hash_create (0, sizeof (uword));
1703 dm->vu_sw_if_index_by_listener_fd = hash_create (0, sizeof (uword));
1704 dm->vu_sw_if_index_by_sock_fd = hash_create (0, sizeof (uword));
1706 /* $$$ use n_thread_stacks since it's known-good at this point */
1707 vec_validate (dm->recycle, tm->n_thread_stacks - 1);
1709 /* initialize EFD (early fast discard) default settings */
1710 dm->efd.enabled = DPDK_EFD_DISABLED;
1711 dm->efd.queue_hi_thresh = ((DPDK_EFD_DEFAULT_DEVICE_QUEUE_HI_THRESH_PCT *
1712 DPDK_NB_RX_DESC_10GE)/100);
1713 dm->efd.consec_full_frames_hi_thresh =
1714 DPDK_EFD_DEFAULT_CONSEC_FULL_FRAMES_HI_THRESH;
1716 /* vhost-user coalescence frames defaults */
1717 dm->vhost_coalesce_frames = 32;
1718 dm->vhost_coalesce_time = 1e-3;
1721 if ((error = vlib_call_init_function (vm, dpdk_cli_init)))
1727 VLIB_INIT_FUNCTION (dpdk_init);