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 case VNET_DPDK_PMD_THUNDERX:
345 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
346 xd->nb_rx_desc = DPDK_NB_RX_DESC_10GE;
347 xd->nb_tx_desc = DPDK_NB_TX_DESC_10GE;
351 case VNET_DPDK_PMD_VICE:
352 case VNET_DPDK_PMD_ENIC:
353 rte_eth_link_get_nowait(xd->device_index, &l);
354 if (l.link_speed == 40000)
356 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
357 xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE;
358 xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
362 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
363 xd->nb_rx_desc = DPDK_NB_RX_DESC_10GE;
364 xd->nb_tx_desc = DPDK_NB_TX_DESC_10GE;
368 /* Intel Fortville */
369 case VNET_DPDK_PMD_I40E:
370 case VNET_DPDK_PMD_I40EVF:
371 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
372 xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE;
373 xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
375 switch (dev_info.pci_dev->id.device_id) {
376 case I40E_DEV_ID_10G_BASE_T:
377 case I40E_DEV_ID_SFP_XL710:
378 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
380 case I40E_DEV_ID_QSFP_A:
381 case I40E_DEV_ID_QSFP_B:
382 case I40E_DEV_ID_QSFP_C:
383 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
386 rte_eth_link_get_nowait(xd->device_index, &l);
387 xd->port_type = l.link_speed == 10000 ?
388 VNET_DPDK_PORT_TYPE_ETH_10G : VNET_DPDK_PORT_TYPE_ETH_40G;
391 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
395 /* Intel Red Rock Canyon */
396 case VNET_DPDK_PMD_FM10K:
397 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
398 xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE;
399 xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
403 case VNET_DPDK_PMD_VIRTIO:
404 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
405 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
406 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
410 case VNET_DPDK_PMD_VMXNET3:
411 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
412 xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
415 case VNET_DPDK_PMD_AF_PACKET:
416 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
417 xd->af_packet_port_id = af_packet_port_id++;
421 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
425 if(strncmp(dev_info.driver_name, "vale", 4) == 0
426 || strncmp(dev_info.driver_name, "netmap", 6) == 0)
428 xd->pmd = VNET_DPDK_PMD_NETMAP;
429 xd->port_type = VNET_DPDK_PORT_TYPE_NETMAP;
436 * Ensure default mtu is not > the mtu read from the hardware.
437 * Otherwise rte_eth_dev_configure() will fail and the port will
440 xd->port_conf.rxmode.max_rx_pkt_len =
441 (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen) ?
442 dev_info.max_rx_pktlen : ETHERNET_MAX_PACKET_BYTES;
445 * DAW-FIXME: VMXNET3 driver doesn't support jumbo / multi-buffer pkts
447 if (xd->pmd == VNET_DPDK_PMD_VMXNET3)
449 xd->port_conf.rxmode.max_rx_pkt_len = 1518;
450 xd->port_conf.rxmode.jumbo_frame = 0;
453 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
455 f64 now = vlib_time_now(vm);
457 rnd = (u32) (now * 1e6);
458 rnd = random_u32 (&rnd);
459 memcpy (addr+2, &rnd, sizeof(rnd));
464 rte_eth_macaddr_get(i,(struct ether_addr *)addr);
466 if (xd->tx_q_used < tm->n_vlib_mains)
468 xd->lockp = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
469 CLIB_CACHE_LINE_BYTES);
470 memset ((void *) xd->lockp, 0, CLIB_CACHE_LINE_BYTES);
473 xd->device_index = xd - dm->devices;
474 ASSERT(i == xd->device_index);
475 xd->per_interface_next_index = ~0;
477 /* assign interface to input thread */
478 dpdk_device_and_queue_t * dq;
481 for (q = 0; q < xd->rx_q_used; q++)
483 int cpu = dm->input_cpu_first_index + next_cpu;
484 unsigned lcore = vlib_worker_threads[cpu].dpdk_lcore_id;
487 * numa node for worker thread handling this queue
488 * needed for taking buffers from the right mempool
490 vec_validate(xd->cpu_socket_id_by_queue, q);
491 xd->cpu_socket_id_by_queue[q] = rte_lcore_to_socket_id(lcore);
494 * construct vector of (device,queue) pairs for each worker thread
496 vec_add2(dm->devices_by_cpu[cpu], dq, 1);
497 dq->device = xd->device_index;
501 if (next_cpu == dm->input_cpu_count)
505 vec_validate_aligned (xd->tx_vectors, tm->n_vlib_mains,
506 CLIB_CACHE_LINE_BYTES);
507 for (j = 0; j < tm->n_vlib_mains; j++)
509 vec_validate_ha (xd->tx_vectors[j], DPDK_TX_RING_SIZE,
510 sizeof(tx_ring_hdr_t), CLIB_CACHE_LINE_BYTES);
511 vec_reset_length (xd->tx_vectors[j]);
514 vec_validate_aligned (xd->rx_vectors, xd->rx_q_used,
515 CLIB_CACHE_LINE_BYTES);
516 for (j = 0; j< xd->rx_q_used; j++)
518 vec_validate_aligned (xd->rx_vectors[j], VLIB_FRAME_SIZE-1,
519 CLIB_CACHE_LINE_BYTES);
520 vec_reset_length (xd->rx_vectors[j]);
523 vec_validate_aligned (xd->frames, tm->n_vlib_mains,
524 CLIB_CACHE_LINE_BYTES);
526 rv = dpdk_port_setup(dm, xd);
531 /* count the number of descriptors used for this device */
532 nb_desc += xd->nb_rx_desc + xd->nb_tx_desc * xd->tx_q_used;
534 error = ethernet_register_interface
536 dpdk_device_class.index,
538 /* ethernet address */ addr,
539 &xd->vlib_hw_if_index,
544 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->vlib_hw_if_index);
545 xd->vlib_sw_if_index = sw->sw_if_index;
546 hi = vnet_get_hw_interface (dm->vnet_main, xd->vlib_hw_if_index);
549 * DAW-FIXME: The Cisco VIC firmware does not provide an api for a
550 * driver to dynamically change the mtu. If/when the
551 * VIC firmware gets fixed, then this should be removed.
553 if (xd->pmd == VNET_DPDK_PMD_VICE ||
554 xd->pmd == VNET_DPDK_PMD_ENIC)
557 * Initialize mtu to what has been set by CIMC in the firmware cfg.
559 hi->max_packet_bytes = dev_info.max_rx_pktlen;
561 * remove vlan tag from VIC port to fix VLAN0 issue.
562 * TODO Handle VLAN tagged traffic
565 vlan_off = rte_eth_dev_get_vlan_offload(xd->device_index);
566 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
567 rte_eth_dev_set_vlan_offload(xd->device_index, vlan_off);
570 * DAW-FIXME: VMXNET3 driver doesn't support jumbo / multi-buffer pkts
572 else if (xd->pmd == VNET_DPDK_PMD_VMXNET3)
573 hi->max_packet_bytes = 1518;
575 hi->max_l3_packet_bytes[VLIB_RX] = hi->max_l3_packet_bytes[VLIB_TX] =
576 xd->port_conf.rxmode.max_rx_pkt_len - sizeof(ethernet_header_t);
578 rte_eth_dev_set_mtu(xd->device_index, hi->max_packet_bytes);
582 clib_warning("Initializing KNI interfaces...");
583 rte_kni_init(dm->num_kni);
584 for (i = 0; i < dm->num_kni; i++)
589 /* Create vnet interface */
590 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
591 xd->dev_type = VNET_DPDK_DEV_KNI;
593 xd->device_index = xd - dm->devices;
594 ASSERT(nports + i == xd->device_index);
595 xd->per_interface_next_index = ~0;
598 hash_set (dm->dpdk_device_by_kni_port_id, i, xd - dm->devices);
601 /* assign interface to input thread */
602 dpdk_device_and_queue_t * dq;
603 vec_add2(dm->devices_by_cpu[dm->input_cpu_first_index], dq, 1);
604 dq->device = xd->device_index;
607 vec_validate_aligned (xd->tx_vectors, tm->n_vlib_mains,
608 CLIB_CACHE_LINE_BYTES);
609 for (j = 0; j < tm->n_vlib_mains; j++)
611 vec_validate_ha (xd->tx_vectors[j], DPDK_TX_RING_SIZE,
612 sizeof(tx_ring_hdr_t), CLIB_CACHE_LINE_BYTES);
613 vec_reset_length (xd->tx_vectors[j]);
616 vec_validate_aligned (xd->rx_vectors, xd->rx_q_used,
617 CLIB_CACHE_LINE_BYTES);
618 for (j = 0; j< xd->rx_q_used; j++)
620 vec_validate_aligned (xd->rx_vectors[j], VLIB_FRAME_SIZE-1,
621 CLIB_CACHE_LINE_BYTES);
622 vec_reset_length (xd->rx_vectors[j]);
625 vec_validate_aligned (xd->frames, tm->n_vlib_mains,
626 CLIB_CACHE_LINE_BYTES);
628 /* FIXME Set up one TX-queue per worker thread */
631 f64 now = vlib_time_now(vm);
633 rnd = (u32) (now * 1e6);
634 rnd = random_u32 (&rnd);
636 memcpy (addr+2, &rnd, sizeof(rnd));
641 error = ethernet_register_interface
643 dpdk_device_class.index,
645 /* ethernet address */ addr,
646 &xd->vlib_hw_if_index,
652 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->vlib_hw_if_index);
653 xd->vlib_sw_if_index = sw->sw_if_index;
654 hi = vnet_get_hw_interface (dm->vnet_main, xd->vlib_hw_if_index);
658 if (nb_desc > dm->num_mbufs)
659 clib_warning ("%d mbufs allocated but total rx/tx ring size is %d\n",
660 dm->num_mbufs, nb_desc);
662 /* init next vhost-user if index */
663 dm->next_vu_if_id = 0;
669 * Tell the vlib physical memory allocator that we've handled
670 * the initialization. We don't actually do so until
671 * vlib_main(...) callls the dpdk config function.
673 int vlib_app_physmem_init (vlib_main_t * vm, physmem_main_t * pm,
674 int physmem_required)
679 static clib_error_t *
680 write_sys_fs (char * file_name, char * fmt, ...)
685 fd = open (file_name, O_WRONLY);
687 return clib_error_return_unix (0, "open `%s'", file_name);
691 s = va_format (0, fmt, &va);
693 vec_add1 (s, 0); // terminate c string
695 if (write (fd, s, vec_len (s)) < 0)
696 return clib_error_return_unix (0, "write '%s' to '%s'", s, file_name);
703 #define VIRTIO_PCI_NAME "virtio-pci"
705 static clib_error_t * dpdk_bind_eth_kernel_drivers (vlib_main_t * vm,
707 char * kernel_driver)
709 dpdk_main_t * dm = &dpdk_main;
710 unformat_input_t _in;
711 unformat_input_t * in = &_in;
712 clib_error_t * error = 0;
713 u8 * line = 0, * modcmd = 0, * path = 0;
714 u8 * pci_vid = 0, *pci_did = 0, * devname = 0;
715 char *driver_name = kernel_driver;
719 * Bail out now if we're not running as root.
720 * This allows non-privileged use of the packet generator, etc.
726 * Get all ethernet pci device numbers for the device type specified.
728 modcmd = format (0, "lspci -nDd %s | grep 0200 | "
729 "awk '{ print $1, $3 }'%c", pci_dev_id, 0);
730 if ((fp = popen ((const char *)modcmd, "r")) == NULL)
732 error = clib_error_return_unix (0,
733 "Unable to get %s ethernet pci devices.",
738 vec_validate (line, BUFSIZ);
739 vec_validate (path, BUFSIZ);
740 while (fgets ((char *)line, BUFSIZ, fp) != NULL)
744 line[strlen ((char *)line) - 1] = 0; // chomp trailing newline.
746 unformat_init_string (in, (char *)line, strlen((char *)line) + 1);
747 unformat(in, "%s %s:%s", &devname, &pci_vid, &pci_did);
751 * Blacklist all ethernet interfaces in the
752 * linux IP routing tables (route --inet --inet6)
754 if (strstr ((char *)dm->eth_if_blacklist, (char *)devname))
758 * If there are any devices whitelisted, then blacklist all devices
759 * which are not explicitly whitelisted.
761 if (dm->eth_if_whitelist &&
762 !strstr ((char *)dm->eth_if_whitelist, (char *)devname))
767 * Optimistically open the device as a netmap device.
769 if (eth_nm_open((char *)devname))
774 path = format (path, "/sys/bus/pci/devices/%s/driver/unbind%c",
778 * If the device is bound to a driver...
780 if (stat ((const char *)path, &st) == 0)
785 * If the interface is not a virtio...
787 if (!driver_name || strcmp(driver_name, VIRTIO_PCI_NAME))
790 * If it is already bound to driver, don't unbind/bind it.
792 device_path = format (0, "/sys/bus/pci/drivers/%s/%s/device%c",
793 driver_name, devname, 0);
794 if (stat ((const char *)device_path, &st) == 0)
797 vec_free (device_path);
801 * unbind it from the current driver
805 _vec_len (path) -= 1;
806 path = format (path, "%c", 0);
807 error = write_sys_fs ((char *)path, "%s", devname);
814 * DAW-FIXME: The following bind/unbind dance is necessary for the dpdk
815 * virtio poll-mode driver to work.
818 if (driver_name && !strcmp(driver_name, VIRTIO_PCI_NAME))
821 * bind interface to the native kernel module
824 path = format (path, "/sys/bus/pci/drivers/%s/bind%c",
826 error = write_sys_fs ((char *)path, "%s", devname);
831 * unbind interface from the native kernel module
833 _vec_len (path) -= 5;
834 path = format (path, "unbind%c", 0);
835 error = write_sys_fs ((char *)path, "%s", devname);
841 * bind the interface to igb_uio
845 int pci_vendor_id = strtol((char *) pci_vid, NULL, 16);
846 int pci_device_id = strtol((char *) pci_did, NULL, 16);
849 * Set PCI ID to ".../virtio-pci/new_id" for Intel fortvile adapaters
851 if (pci_vendor_id == 0x8086 &&
852 (pci_device_id == I40E_DEV_ID_10G_BASE_T ||
853 pci_device_id == I40E_DEV_ID_SFP_XL710 ||
854 pci_device_id == I40E_DEV_ID_QSFP_A ||
855 pci_device_id == I40E_DEV_ID_QSFP_B ||
856 pci_device_id == I40E_DEV_ID_QSFP_C))
859 path = format (path, "/sys/bus/pci/drivers/%s/new_id%c", driver_name, 0);
860 error = write_sys_fs ((char *) path, "%s %s", pci_vid, pci_did);
866 path = format (path, "/sys/bus/pci/drivers/%s/bind%c", driver_name, 0);
867 error = write_sys_fs ((char *) path, "%s", devname);
888 unformat_socket_mem (unformat_input_t * input, va_list * va)
890 uword ** r = va_arg (* va, uword **);
894 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
896 if (unformat (input, ","))
897 hash_set (*r, i, 1024);
898 else if (unformat (input, "%u,", &mem))
899 hash_set (*r, i, mem);
900 else if (unformat (input, "%u", &mem))
901 hash_set (*r, i, mem);
904 unformat_put_input (input);
915 get_node_free_hugepages_num (u32 node, u32 page_size)
920 tmp = format (0, "/sys/devices/system/node/node%u/hugepages/hugepages-%ukB/"
921 "free_hugepages%c", node, page_size, 0);
922 fp = fopen ((char *) tmp, "r");
930 vec_validate (buffer, 256-1);
931 if (fgets ((char *)buffer, 256, fp))
934 unformat_init_string (&in, (char *) buffer, strlen ((char *) buffer));
935 unformat(&in, "%u", &pages_avail);
946 static clib_error_t *
947 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
949 clib_error_t * error = 0;
950 dpdk_main_t * dm = &dpdk_main;
951 vlib_thread_main_t * tm = vlib_get_thread_main();
954 u8 * rte_cmd = 0, * ethname = 0;
960 int rxrings, txrings, rxslots, txslots, txburst;
963 unformat_input_t _in;
964 unformat_input_t * in = &_in;
971 // MATT-FIXME: inverted virtio-vhost logic to use virtio by default
972 dm->use_virtio_vhost = 1;
974 while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
977 if (unformat (input, "no-hugetlb"))
979 vec_add1 (dm->eal_init_args, (u8 *) "no-huge");
983 else if (unformat (input, "decimal-interface-names"))
984 dm->interface_name_format_decimal = 1;
986 else if (unformat (input, "no-multi-seg"))
987 dm->no_multi_seg = 1;
989 else if (unformat (input, "dev %s", &pci_dev_id))
991 if (dm->eth_if_whitelist)
994 * Don't add duplicate device id's.
996 if (strstr ((char *)dm->eth_if_whitelist, (char *)pci_dev_id))
999 _vec_len (dm->eth_if_whitelist) -= 1; // chomp trailing NULL.
1000 dm->eth_if_whitelist = format (dm->eth_if_whitelist, " %s%c",
1004 dm->eth_if_whitelist = format (0, "%s%c", pci_dev_id, 0);
1008 else if (unformat(input, "netmap %s/%d:%d/%d:%d/%d",
1009 &nmname, &rxrings, &rxslots, &txrings, &txslots, &txburst)) {
1012 eth_nm_args(nmname, rxrings, rxslots, txrings, txslots, txburst);
1014 error = clib_error_return (0, "%s", rv);
1017 }else if (unformat(input, "netmap %s", &nmname)) {
1020 eth_nm_args(nmname, 0, 0, 0, 0, 0);
1022 error = clib_error_return (0, "%s", rv);
1028 else if (unformat (input, "num-mbufs %d", &dm->num_mbufs))
1030 else if (unformat (input, "kni %d", &dm->num_kni))
1032 else if (unformat (input, "uio-driver %s", &dm->uio_driver_name))
1034 else if (unformat (input, "vhost-user-coalesce-frames %d", &dm->vhost_coalesce_frames))
1036 else if (unformat (input, "vhost-user-coalesce-time %f", &dm->vhost_coalesce_time))
1038 else if (unformat (input, "enable-vhost-user"))
1039 dm->use_virtio_vhost = 0;
1040 else if (unformat (input, "rss %d", &dm->use_rss))
1044 else if (unformat(input, #a)) \
1046 if (!strncmp(#a, "no-pci", 6)) \
1048 tmp = format (0, "--%s%c", #a, 0); \
1049 vec_add1 (dm->eal_init_args, tmp); \
1051 foreach_eal_double_hyphen_predicate_arg
1055 else if (unformat(input, #a " %s", &s)) \
1057 if (!strncmp(#a, "huge-dir", 8)) \
1059 else if (!strncmp(#a, "file-prefix", 11)) \
1061 else if (!strncmp(#a, "socket-mem", 10)) \
1062 socket_mem = vec_dup (s); \
1063 tmp = format (0, "--%s%c", #a, 0); \
1064 vec_add1 (dm->eal_init_args, tmp); \
1066 vec_add1 (dm->eal_init_args, s); \
1068 foreach_eal_double_hyphen_arg
1072 else if (unformat(input, #a " %s", &s)) \
1074 tmp = format (0, "-%s%c", #b, 0); \
1075 vec_add1 (dm->eal_init_args, tmp); \
1077 vec_add1 (dm->eal_init_args, s); \
1079 foreach_eal_single_hyphen_arg
1083 else if (unformat(input, #a " %s", &s)) \
1085 tmp = format (0, "-%s%c", #b, 0); \
1086 vec_add1 (dm->eal_init_args, tmp); \
1088 vec_add1 (dm->eal_init_args, s); \
1089 dm->a##_set_manually = 1; \
1091 foreach_eal_single_hyphen_mandatory_arg
1094 else if (unformat(input, "default"))
1099 error = clib_error_return (0, "unknown input `%U'",
1100 format_unformat_error, input);
1105 if (!dm->uio_driver_name)
1106 dm->uio_driver_name = format (0, "igb_uio");
1109 * Use 1G huge pages if available.
1111 if (!no_huge && !huge_dir)
1113 uword * mem_by_socket = hash_create (0, sizeof (uword));
1119 umount(DEFAULT_HUGE_DIR);
1121 /* Process "socket-mem" parameter value */
1122 if (vec_len (socket_mem))
1124 unformat_input_t in;
1125 unformat_init_vector(&in, socket_mem);
1126 unformat(&in, "%U", unformat_socket_mem, &mem_by_socket);
1132 /* check if available enough 1GB pages for each socket */
1133 clib_bitmap_foreach (c, tm->cpu_socket_bitmap, ({
1134 uword * p = hash_get (mem_by_socket, c);
1140 u32 pages_num_1g = mem / 1024;
1141 u32 pages_num_2m = mem / 2;
1144 pages_avail = get_node_free_hugepages_num(c, 1048576);
1145 if (!(pages_avail >= pages_num_1g))
1148 pages_avail = get_node_free_hugepages_num(c, 2048);
1149 if (!(pages_avail >= pages_num_2m))
1155 hash_free (mem_by_socket);
1157 rv = mkdir(VPP_RUN_DIR, 0755);
1158 if (rv && errno != EEXIST)
1160 error = clib_error_return (0, "mkdir '%s' failed errno %d",
1161 VPP_RUN_DIR, errno);
1165 rv = mkdir(DEFAULT_HUGE_DIR, 0755);
1166 if (rv && errno != EEXIST)
1168 error = clib_error_return (0, "mkdir '%s' failed errno %d",
1169 DEFAULT_HUGE_DIR, errno);
1175 rv = mount("none", DEFAULT_HUGE_DIR, "hugetlbfs", 0, "pagesize=1G");
1179 rv = mount("none", DEFAULT_HUGE_DIR, "hugetlbfs", 0, NULL);
1183 return clib_error_return (0, "not enough free huge pages");
1188 error = clib_error_return (0, "mount failed %d", errno);
1192 tmp = format (0, "--huge-dir%c", 0);
1193 vec_add1 (dm->eal_init_args, tmp);
1194 tmp = format (0, "%s%c", DEFAULT_HUGE_DIR, 0);
1195 vec_add1 (dm->eal_init_args, tmp);
1198 tmp = format (0, "--file-prefix%c", 0);
1199 vec_add1 (dm->eal_init_args, tmp);
1200 tmp = format (0, "vpp%c", 0);
1201 vec_add1 (dm->eal_init_args, tmp);
1206 * Blacklist all ethernet interfaces in the linux IP routing tables.
1208 dm->eth_if_blacklist = format (0, "%c", 0);
1209 rte_cmd = format (0, "route --inet --inet6 -n|awk '{print $7}'|sort -u|"
1210 "egrep $(echo $(ls -1d /sys/class/net/*/device|"
1211 "cut -d/ -f5)|sed -s 's/ /|/g')%c", 0);
1212 if ((rte_fp = popen ((const char *)rte_cmd, "r")) == NULL)
1214 error = clib_error_return_unix (0, "Unable to find blacklist ethernet"
1215 " interface(s) in linux routing tables.");
1220 vec_validate (ethname, BUFSIZ);
1221 while (fgets ((char *)ethname, BUFSIZ, rte_fp) != NULL)
1224 u8 * rlnk_cmd = 0, * devname = 0;
1226 ethname[strlen ((char *)ethname) - 1] = 0; // chomp trailing newline.
1228 rlnk_cmd = format (0, "readlink /sys/class/net/%s%c",
1231 if ((rlnk_fp = popen ((const char *)rlnk_cmd, "r")) == NULL)
1233 error = clib_error_return_unix (0, "Unable to read %s link.",
1238 vec_validate (devname, BUFSIZ);
1239 while (fgets ((char *)devname, BUFSIZ, rlnk_fp) != NULL)
1244 * Extract the device PCI ID name from the link. It is the first
1245 * PCI ID searching backwards from the end of the link pathname.
1247 * readlink /sys/class/net/eth0
1248 * ../../devices/pci0000:00/0000:00:0a.0/virtio4/net/eth0
1250 for (pci_id = (char *)((devname + strlen((char *)devname)));
1251 ((u8 *)pci_id > devname) && *pci_id != '.'; pci_id--)
1255 * Verify that the field found is a valid PCI ID.
1257 if ((*(pci_id - 1) == '.') || ((u8 *)(pci_id - 11) < devname) ||
1258 (*(pci_id - 11) != '/') || (*(pci_id - 3) != ':') ||
1259 (*(pci_id - 6) != ':'))
1261 devname[strlen ((char *)devname) - 1] = 0; // chomp trailing newline.
1262 clib_warning ("Unable to extract %s PCI ID (0x%llx \"%s\") "
1263 "from 0x%llx \"%s\"", ethname, pci_id, pci_id,
1271 /* Don't blacklist any interfaces which have been whitelisted.
1273 if (dm->eth_if_whitelist &&
1274 strstr ((char *)dm->eth_if_whitelist, (char *)pci_id))
1277 _vec_len (dm->eth_if_blacklist) -= 1; // chomp trailing NULL.
1278 dm->eth_if_blacklist = format (dm->eth_if_blacklist, " %s%c",
1284 vec_free (rlnk_cmd);
1296 /* I'll bet that -c and -n must be the first and second args... */
1297 if (!dm->coremask_set_manually)
1299 vlib_thread_registration_t * tr;
1303 /* main thread core */
1304 coremask = 1 << tm->main_lcore;
1306 for (i = 0; i < vec_len (tm->registrations); i++)
1308 tr = tm->registrations[i];
1309 if (clib_bitmap_is_zero(tr->coremask))
1311 coremask |= tr->coremask[0];
1314 vec_insert (dm->eal_init_args, 2, 1);
1315 dm->eal_init_args[1] = (u8 *) "-c";
1316 tmp = format (0, "%x%c", coremask, 0);
1317 dm->eal_init_args[2] = tmp;
1320 if (!dm->nchannels_set_manually)
1322 vec_insert (dm->eal_init_args, 2, 3);
1323 dm->eal_init_args[3] = (u8 *) "-n";
1324 tmp = format (0, "%d", dm->nchannels);
1325 dm->eal_init_args[4] = tmp;
1329 * If there are whitelisted devices,
1330 * add the whitelist option & device list to the dpdk arg list...
1332 if (dm->eth_if_whitelist)
1334 unformat_init_string (in, (char *)dm->eth_if_whitelist,
1335 vec_len(dm->eth_if_whitelist) - 1);
1340 * Otherwise add the blacklisted devices to the dpdk arg list.
1344 unformat_init_string (in, (char *)dm->eth_if_blacklist,
1345 vec_len(dm->eth_if_blacklist) - 1);
1349 while (unformat_check_input (in) != UNFORMAT_END_OF_INPUT)
1351 tmp = format (0, fmt, 0);
1352 vec_add1 (dm->eal_init_args, tmp);
1353 unformat (in, "%s", &pci_dev_id);
1354 vec_add1 (dm->eal_init_args, pci_dev_id);
1360 * Bind Virtio pci devices to the igb_uio kernel driver.
1362 error = dpdk_bind_eth_kernel_drivers (vm, "1af4:1000", VIRTIO_PCI_NAME);
1367 * Bind vmxnet3 pci devices to the igb_uio kernel driver.
1369 error = dpdk_bind_eth_kernel_drivers (vm, "15ad:07b0",
1370 (char *) dm->uio_driver_name);
1375 * Bind Intel ethernet pci devices to igb_uio kernel driver.
1377 error = dpdk_bind_eth_kernel_drivers (vm, "8086:",
1378 (char *) dm->uio_driver_name);
1380 * Bind Cisco VIC ethernet pci devices to igb_uio kernel driver.
1382 error = dpdk_bind_eth_kernel_drivers (vm, "1137:0043",
1383 (char *) dm->uio_driver_name);
1386 /* set master-lcore */
1387 tmp = format (0, "--master-lcore%c", 0);
1388 vec_add1 (dm->eal_init_args, tmp);
1389 tmp = format (0, "%u%c", tm->main_lcore, 0);
1390 vec_add1 (dm->eal_init_args, tmp);
1392 /* NULL terminate the "argv" vector, in case of stupidity */
1393 vec_add1 (dm->eal_init_args, 0);
1394 _vec_len(dm->eal_init_args) -= 1;
1396 /* Set up DPDK eal and packet mbuf pool early. */
1398 log_level = (CLIB_DEBUG > 0) ? RTE_LOG_DEBUG : RTE_LOG_NOTICE;
1400 rte_set_log_level (log_level);
1404 ret = rte_eal_init(vec_len(dm->eal_init_args), (char **) dm->eal_init_args);
1406 /* lazy umount hugepages */
1407 umount2(DEFAULT_HUGE_DIR, MNT_DETACH);
1410 return clib_error_return (0, "rte_eal_init returned %d", ret);
1412 /* main thread 1st */
1413 error = vlib_buffer_pool_create(vm, dm->num_mbufs, MBUF_SIZE, rte_socket_id());
1417 for (i = 0; i < RTE_MAX_LCORE; i++)
1419 error = vlib_buffer_pool_create(vm, dm->num_mbufs, MBUF_SIZE,
1420 rte_lcore_to_socket_id(i));
1427 vlib_node_runtime_t * rt = vlib_node_get_runtime (vm, dpdk_input_node.index);
1428 rt->function = dpdk_input_rss;
1434 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1436 void dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1438 vnet_main_t * vnm = vnet_get_main();
1439 struct rte_eth_link prev_link = xd->link;
1441 u8 hw_flags_chg = 0;
1443 /* only update link state for PMD interfaces */
1444 if (xd->dev_type != VNET_DPDK_DEV_ETH)
1447 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1448 memset(&xd->link, 0, sizeof(xd->link));
1449 rte_eth_link_get_nowait (xd->device_index, &xd->link);
1451 if (LINK_STATE_ELOGS)
1453 vlib_main_t * vm = vlib_get_main();
1454 ELOG_TYPE_DECLARE(e) = {
1456 "update-link-state: sw_if_index %d, admin_up %d,"
1457 "old link_state %d new link_state %d",
1458 .format_args = "i4i1i1i1",
1461 struct { u32 sw_if_index; u8 admin_up;
1462 u8 old_link_state; u8 new_link_state;} *ed;
1463 ed = ELOG_DATA (&vm->elog_main, e);
1464 ed->sw_if_index = xd->vlib_sw_if_index;
1465 ed->admin_up = xd->admin_up;
1466 ed->old_link_state = (u8)
1467 vnet_hw_interface_is_link_up (vnm, xd->vlib_hw_if_index);
1468 ed->new_link_state = (u8) xd->link.link_status;
1471 if ((xd->admin_up == 1) &&
1472 ((xd->link.link_status != 0) ^
1473 vnet_hw_interface_is_link_up (vnm, xd->vlib_hw_if_index)))
1476 hw_flags |= (xd->link.link_status ?
1477 VNET_HW_INTERFACE_FLAG_LINK_UP: 0);
1480 if (hw_flags_chg || (xd->link.link_duplex != prev_link.link_duplex))
1483 switch (xd->link.link_duplex)
1485 case ETH_LINK_HALF_DUPLEX:
1486 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1488 case ETH_LINK_FULL_DUPLEX:
1489 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1495 if (hw_flags_chg || (xd->link.link_speed != prev_link.link_speed))
1498 switch (xd->link.link_speed)
1500 case ETH_LINK_SPEED_10:
1501 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10M;
1503 case ETH_LINK_SPEED_100:
1504 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_100M;
1506 case ETH_LINK_SPEED_1000:
1507 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_1G;
1509 case ETH_LINK_SPEED_10000:
1510 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10G;
1512 case ETH_LINK_SPEED_40G:
1513 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_40G;
1518 clib_warning("unknown link speed %d", xd->link.link_speed);
1524 if (LINK_STATE_ELOGS)
1526 vlib_main_t * vm = vlib_get_main();
1528 ELOG_TYPE_DECLARE(e) = {
1529 .format = "update-link-state: sw_if_index %d, new flags %d",
1530 .format_args = "i4i4",
1533 struct { u32 sw_if_index; u32 flags; } *ed;
1534 ed = ELOG_DATA (&vm->elog_main, e);
1535 ed->sw_if_index = xd->vlib_sw_if_index;
1536 ed->flags = hw_flags;
1538 vnet_hw_interface_set_flags (vnm, xd->vlib_hw_if_index, hw_flags);
1543 dpdk_process (vlib_main_t * vm,
1544 vlib_node_runtime_t * rt,
1547 clib_error_t * error;
1548 dpdk_main_t * dm = &dpdk_main;
1550 vlib_thread_main_t * tm = vlib_get_thread_main();
1554 error = dpdk_lib_init (dm);
1557 * Turn on the input node if we found some devices to drive
1558 * and we're not running worker threads or i/o threads
1561 if (error == 0 && vec_len(dm->devices) > 0)
1563 if (tm->n_vlib_mains == 1)
1564 vlib_node_set_state (vm, dpdk_input_node.index,
1565 VLIB_NODE_STATE_POLLING);
1566 else if (tm->main_thread_is_io_node)
1567 vlib_node_set_state (vm, dpdk_io_input_node.index,
1568 VLIB_NODE_STATE_POLLING);
1569 else if (!dm->have_io_threads)
1570 for (i=0; i < tm->n_vlib_mains; i++)
1571 if (vec_len(dm->devices_by_cpu[i]) > 0)
1572 vlib_node_set_state (vlib_mains[i], dpdk_input_node.index,
1573 VLIB_NODE_STATE_POLLING);
1577 clib_error_report (error);
1579 dpdk_vhost_user_process_init(&vu_state);
1581 dm->io_thread_release = 1;
1583 f64 now = vlib_time_now (vm);
1584 vec_foreach (xd, dm->devices)
1586 dpdk_update_link_state (xd, now);
1591 vlib_process_wait_for_event_or_clock (vm, 5.0);
1593 if (dpdk_get_admin_up_down_in_progress())
1594 /* skip the poll if an admin up down is in progress (on any interface) */
1597 vec_foreach (xd, dm->devices)
1599 f64 now = vlib_time_now (vm);
1600 if ((now - xd->time_last_stats_update) >= DPDK_STATS_POLL_INTERVAL)
1601 dpdk_update_counters (xd, now);
1602 if ((now - xd->time_last_link_update) >= DPDK_LINK_POLL_INTERVAL)
1603 dpdk_update_link_state (xd, now);
1605 if (xd->dev_type == VNET_DPDK_DEV_VHOST_USER)
1606 if (dpdk_vhost_user_process_if(vm, xd, vu_state) != 0)
1611 dpdk_vhost_user_process_cleanup(vu_state);
1616 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1617 .function = dpdk_process,
1618 .type = VLIB_NODE_TYPE_PROCESS,
1619 .name = "dpdk-process",
1620 .process_log2_n_stack_bytes = 17,
1624 dpdk_init (vlib_main_t * vm)
1626 dpdk_main_t * dm = &dpdk_main;
1628 clib_error_t * error = 0;
1629 vlib_thread_main_t * tm = vlib_get_thread_main();
1631 /* verify that structs are cacheline aligned */
1632 ASSERT(offsetof(dpdk_device_t, cacheline0) == 0);
1633 ASSERT(offsetof(dpdk_device_t, cacheline1) == CLIB_CACHE_LINE_BYTES);
1634 ASSERT(offsetof(dpdk_worker_t, cacheline0) == 0);
1635 ASSERT(offsetof(frame_queue_trace_t, cacheline0) == 0);
1637 /* Add references to DPDK Driver Constructor functions to get the dynamic
1638 * loader to pull in the driver library & run the constructors.
1642 void devinitfn_ ##d(void); \
1643 __attribute__((unused)) void (* volatile pf)(void); \
1644 pf = devinitfn_ ##d; \
1647 #ifdef RTE_LIBRTE_EM_PMD
1651 #ifdef RTE_LIBRTE_IGB_PMD
1655 #ifdef RTE_LIBRTE_IXGBE_PMD
1659 #ifdef RTE_LIBRTE_I40E_PMD
1661 _(rte_i40evf_driver)
1664 #ifdef RTE_LIBRTE_FM10K_PMD
1668 #ifdef RTE_LIBRTE_VIRTIO_PMD
1669 _(rte_virtio_driver)
1672 #ifdef RTE_LIBRTE_VMXNET3_PMD
1673 _(rte_vmxnet3_driver)
1676 #ifdef RTE_LIBRTE_VICE_PMD
1680 #ifdef RTE_LIBRTE_ENIC_PMD
1684 #ifdef RTE_LIBRTE_PMD_AF_PACKET
1685 _(pmd_af_packet_drv)
1691 * At the moment, the ThunderX NIC driver doesn't have
1692 * an entry point named "devinitfn_rte_xxx_driver"
1697 __attribute__((unused)) void (* volatile pf)(void); \
1701 #ifdef RTE_LIBRTE_THUNDERVNIC_PMD
1702 _(rte_nicvf_pmd_init)
1707 dm->vnet_main = vnet_get_main();
1709 ei = vlib_get_node_by_name (vm, (u8 *) "ethernet-input");
1711 return clib_error_return (0, "ethernet-input node AWOL");
1713 dm->ethernet_input_node_index = ei->index;
1716 dm->num_mbufs = dm->num_mbufs ? dm->num_mbufs : NB_MBUF;
1717 vec_add1 (dm->eal_init_args, (u8 *) "vnet");
1719 dm->dpdk_device_by_kni_port_id = hash_create (0, sizeof (uword));
1720 dm->vu_sw_if_index_by_listener_fd = hash_create (0, sizeof (uword));
1721 dm->vu_sw_if_index_by_sock_fd = hash_create (0, sizeof (uword));
1723 /* $$$ use n_thread_stacks since it's known-good at this point */
1724 vec_validate (dm->recycle, tm->n_thread_stacks - 1);
1726 /* initialize EFD (early fast discard) default settings */
1727 dm->efd.enabled = DPDK_EFD_DISABLED;
1728 dm->efd.queue_hi_thresh = ((DPDK_EFD_DEFAULT_DEVICE_QUEUE_HI_THRESH_PCT *
1729 DPDK_NB_RX_DESC_10GE)/100);
1730 dm->efd.consec_full_frames_hi_thresh =
1731 DPDK_EFD_DEFAULT_CONSEC_FULL_FRAMES_HI_THRESH;
1733 /* vhost-user coalescence frames defaults */
1734 dm->vhost_coalesce_frames = 32;
1735 dm->vhost_coalesce_time = 1e-3;
1738 if ((error = vlib_call_init_function (vm, dpdk_cli_init)))
1744 VLIB_INIT_FUNCTION (dpdk_init);