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);
208 dpdk_device_lock_init(dpdk_device_t * xd)
211 vec_validate(xd->lockp, xd->tx_q_used - 1);
212 for (q = 0; q < xd->tx_q_used; q++)
214 xd->lockp[q] = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
215 CLIB_CACHE_LINE_BYTES);
216 memset ((void *) xd->lockp[q], 0, CLIB_CACHE_LINE_BYTES);
222 dpdk_device_lock_free(dpdk_device_t * xd)
226 for (q = 0; q < vec_len(xd->lockp); q++)
227 clib_mem_free((void *) xd->lockp[q]);
233 static clib_error_t *
234 dpdk_lib_init (dpdk_main_t * dm)
239 clib_error_t * error;
240 vlib_main_t * vm = vlib_get_main();
241 vlib_thread_main_t * tm = vlib_get_thread_main();
242 vnet_sw_interface_t * sw;
243 vnet_hw_interface_t * hi;
245 vlib_thread_registration_t * tr;
249 u8 af_packet_port_id = 0;
251 dm->input_cpu_first_index = 0;
252 dm->input_cpu_count = 1;
254 /* find out which cpus will be used for input */
255 p = hash_get_mem (tm->thread_registrations_by_name, "io");
256 tr = p ? (vlib_thread_registration_t *) p[0] : 0;
258 if (!tr || tr->count == 0)
260 /* no io threads, workers doing input */
261 p = hash_get_mem (tm->thread_registrations_by_name, "workers");
262 tr = p ? (vlib_thread_registration_t *) p[0] : 0;
266 dm->have_io_threads = 1;
269 if (tr && tr->count > 0)
271 dm->input_cpu_first_index = tr->first_index;
272 dm->input_cpu_count = tr->count;
275 vec_validate_aligned (dm->devices_by_cpu, tm->n_vlib_mains - 1,
276 CLIB_CACHE_LINE_BYTES);
278 vec_validate_aligned (dm->workers, tm->n_vlib_mains - 1,
279 CLIB_CACHE_LINE_BYTES);
282 if(rte_netmap_probe() < 0)
283 return clib_error_return (0, "rte netmap probe failed");
286 nports = rte_eth_dev_count();
289 clib_warning ("DPDK drivers found no ports...");
293 clib_warning ("DPDK drivers found %d ports...", nports);
296 * All buffers are all allocated from the same rte_mempool.
297 * Thus they all have the same number of data bytes.
299 dm->vlib_buffer_free_list_index =
300 vlib_buffer_get_or_create_free_list (
301 vm, VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES, "dpdk rx");
303 for (i = 0; i < nports; i++)
307 struct rte_eth_dev_info dev_info;
309 struct rte_eth_link l;
311 /* Create vnet interface */
312 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
313 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
314 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
315 xd->cpu_socket = (i8) rte_eth_dev_socket_id(i);
316 rte_eth_dev_info_get(i, &dev_info);
318 memcpy(&xd->tx_conf, &dev_info.default_txconf,
319 sizeof(struct rte_eth_txconf));
320 if (dm->no_multi_seg)
322 xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
323 port_conf_template.rxmode.jumbo_frame = 0;
327 xd->tx_conf.txq_flags &= ~ETH_TXQ_FLAGS_NOMULTSEGS;
328 port_conf_template.rxmode.jumbo_frame = 1;
331 memcpy(&xd->port_conf, &port_conf_template, sizeof(struct rte_eth_conf));
333 xd->tx_q_used = clib_min(dev_info.max_tx_queues, tm->n_vlib_mains);
335 if (dm->max_tx_queues)
336 xd->tx_q_used = clib_min(xd->tx_q_used, dm->max_tx_queues);
338 if (dm->use_rss > 1 && dev_info.max_rx_queues >= dm->use_rss)
340 xd->rx_q_used = dm->use_rss;
341 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
342 xd->port_conf.rx_adv_conf.rss_conf.rss_hf = ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
347 xd->dev_type = VNET_DPDK_DEV_ETH;
349 /* workaround for drivers not setting driver_name */
350 if (!dev_info.driver_name)
351 dev_info.driver_name = dev_info.pci_dev->driver->name;
352 ASSERT(dev_info.driver_name);
357 #define _(s,f) else if (!strcmp(dev_info.driver_name, s)) \
358 xd->pmd = VNET_DPDK_PMD_##f;
364 xd->pmd = VNET_DPDK_PMD_UNKNOWN;
369 case VNET_DPDK_PMD_E1000EM:
370 case VNET_DPDK_PMD_IGB:
371 case VNET_DPDK_PMD_IGBVF:
372 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
376 case VNET_DPDK_PMD_IXGBE:
377 case VNET_DPDK_PMD_IXGBEVF:
378 case VNET_DPDK_PMD_THUNDERX:
379 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
380 xd->nb_rx_desc = DPDK_NB_RX_DESC_10GE;
381 xd->nb_tx_desc = DPDK_NB_TX_DESC_10GE;
385 case VNET_DPDK_PMD_VICE:
386 case VNET_DPDK_PMD_ENIC:
387 rte_eth_link_get_nowait(xd->device_index, &l);
388 if (l.link_speed == 40000)
390 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
391 xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE;
392 xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
396 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
397 xd->nb_rx_desc = DPDK_NB_RX_DESC_10GE;
398 xd->nb_tx_desc = DPDK_NB_TX_DESC_10GE;
402 /* Intel Fortville */
403 case VNET_DPDK_PMD_I40E:
404 case VNET_DPDK_PMD_I40EVF:
405 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
406 xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE;
407 xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
409 switch (dev_info.pci_dev->id.device_id) {
410 case I40E_DEV_ID_10G_BASE_T:
411 case I40E_DEV_ID_SFP_XL710:
412 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
414 case I40E_DEV_ID_QSFP_A:
415 case I40E_DEV_ID_QSFP_B:
416 case I40E_DEV_ID_QSFP_C:
417 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
420 rte_eth_link_get_nowait(xd->device_index, &l);
421 xd->port_type = l.link_speed == 10000 ?
422 VNET_DPDK_PORT_TYPE_ETH_10G : VNET_DPDK_PORT_TYPE_ETH_40G;
425 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
429 case VNET_DPDK_PMD_CXGBE:
430 switch (dev_info.pci_dev->id.device_id) {
431 case 0x5410: /* T580-LP-cr */
432 xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE;
433 xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
434 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
437 xd->nb_rx_desc = DPDK_NB_RX_DESC_10GE;
438 xd->nb_tx_desc = DPDK_NB_TX_DESC_10GE;
439 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
443 /* Intel Red Rock Canyon */
444 case VNET_DPDK_PMD_FM10K:
445 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
446 xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE;
447 xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
451 case VNET_DPDK_PMD_VIRTIO:
452 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
453 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
454 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
458 case VNET_DPDK_PMD_VMXNET3:
459 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
460 xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
463 case VNET_DPDK_PMD_AF_PACKET:
464 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
465 xd->af_packet_port_id = af_packet_port_id++;
469 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
473 if(strncmp(dev_info.driver_name, "vale", 4) == 0
474 || strncmp(dev_info.driver_name, "netmap", 6) == 0)
476 xd->pmd = VNET_DPDK_PMD_NETMAP;
477 xd->port_type = VNET_DPDK_PORT_TYPE_NETMAP;
484 * Ensure default mtu is not > the mtu read from the hardware.
485 * Otherwise rte_eth_dev_configure() will fail and the port will
488 xd->port_conf.rxmode.max_rx_pkt_len =
489 (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen) ?
490 dev_info.max_rx_pktlen : ETHERNET_MAX_PACKET_BYTES;
493 * DAW-FIXME: VMXNET3 driver doesn't support jumbo / multi-buffer pkts
495 if (xd->pmd == VNET_DPDK_PMD_VMXNET3)
497 xd->port_conf.rxmode.max_rx_pkt_len = 1518;
498 xd->port_conf.rxmode.jumbo_frame = 0;
501 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
503 f64 now = vlib_time_now(vm);
505 rnd = (u32) (now * 1e6);
506 rnd = random_u32 (&rnd);
507 memcpy (addr+2, &rnd, sizeof(rnd));
512 rte_eth_macaddr_get(i,(struct ether_addr *)addr);
514 if (xd->tx_q_used < tm->n_vlib_mains)
515 dpdk_device_lock_init(xd);
517 xd->device_index = xd - dm->devices;
518 ASSERT(i == xd->device_index);
519 xd->per_interface_next_index = ~0;
521 /* assign interface to input thread */
522 dpdk_device_and_queue_t * dq;
525 for (q = 0; q < xd->rx_q_used; q++)
527 int cpu = dm->input_cpu_first_index + next_cpu;
528 unsigned lcore = vlib_worker_threads[cpu].dpdk_lcore_id;
531 * numa node for worker thread handling this queue
532 * needed for taking buffers from the right mempool
534 vec_validate(xd->cpu_socket_id_by_queue, q);
535 xd->cpu_socket_id_by_queue[q] = rte_lcore_to_socket_id(lcore);
538 * construct vector of (device,queue) pairs for each worker thread
540 vec_add2(dm->devices_by_cpu[cpu], dq, 1);
541 dq->device = xd->device_index;
545 if (next_cpu == dm->input_cpu_count)
549 vec_validate_aligned (xd->tx_vectors, tm->n_vlib_mains,
550 CLIB_CACHE_LINE_BYTES);
551 for (j = 0; j < tm->n_vlib_mains; j++)
553 vec_validate_ha (xd->tx_vectors[j], DPDK_TX_RING_SIZE,
554 sizeof(tx_ring_hdr_t), CLIB_CACHE_LINE_BYTES);
555 vec_reset_length (xd->tx_vectors[j]);
558 vec_validate_aligned (xd->rx_vectors, xd->rx_q_used,
559 CLIB_CACHE_LINE_BYTES);
560 for (j = 0; j< xd->rx_q_used; j++)
562 vec_validate_aligned (xd->rx_vectors[j], VLIB_FRAME_SIZE-1,
563 CLIB_CACHE_LINE_BYTES);
564 vec_reset_length (xd->rx_vectors[j]);
567 vec_validate_aligned (xd->frames, tm->n_vlib_mains,
568 CLIB_CACHE_LINE_BYTES);
570 rv = dpdk_port_setup(dm, xd);
575 /* count the number of descriptors used for this device */
576 nb_desc += xd->nb_rx_desc + xd->nb_tx_desc * xd->tx_q_used;
578 error = ethernet_register_interface
580 dpdk_device_class.index,
582 /* ethernet address */ addr,
583 &xd->vlib_hw_if_index,
588 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->vlib_hw_if_index);
589 xd->vlib_sw_if_index = sw->sw_if_index;
590 hi = vnet_get_hw_interface (dm->vnet_main, xd->vlib_hw_if_index);
593 * DAW-FIXME: The Cisco VIC firmware does not provide an api for a
594 * driver to dynamically change the mtu. If/when the
595 * VIC firmware gets fixed, then this should be removed.
597 if (xd->pmd == VNET_DPDK_PMD_VICE ||
598 xd->pmd == VNET_DPDK_PMD_ENIC)
601 * Initialize mtu to what has been set by CIMC in the firmware cfg.
603 hi->max_packet_bytes = dev_info.max_rx_pktlen;
605 * remove vlan tag from VIC port to fix VLAN0 issue.
606 * TODO Handle VLAN tagged traffic
609 vlan_off = rte_eth_dev_get_vlan_offload(xd->device_index);
610 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
611 rte_eth_dev_set_vlan_offload(xd->device_index, vlan_off);
614 * DAW-FIXME: VMXNET3 driver doesn't support jumbo / multi-buffer pkts
616 else if (xd->pmd == VNET_DPDK_PMD_VMXNET3)
617 hi->max_packet_bytes = 1518;
619 hi->max_l3_packet_bytes[VLIB_RX] = hi->max_l3_packet_bytes[VLIB_TX] =
620 xd->port_conf.rxmode.max_rx_pkt_len - sizeof(ethernet_header_t);
622 rte_eth_dev_set_mtu(xd->device_index, hi->max_packet_bytes);
625 #ifdef RTE_LIBRTE_KNI
627 clib_warning("Initializing KNI interfaces...");
628 rte_kni_init(dm->num_kni);
629 for (i = 0; i < dm->num_kni; i++)
634 /* Create vnet interface */
635 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
636 xd->dev_type = VNET_DPDK_DEV_KNI;
638 xd->device_index = xd - dm->devices;
639 ASSERT(nports + i == xd->device_index);
640 xd->per_interface_next_index = ~0;
643 hash_set (dm->dpdk_device_by_kni_port_id, i, xd - dm->devices);
646 /* assign interface to input thread */
647 dpdk_device_and_queue_t * dq;
648 vec_add2(dm->devices_by_cpu[dm->input_cpu_first_index], dq, 1);
649 dq->device = xd->device_index;
652 vec_validate_aligned (xd->tx_vectors, tm->n_vlib_mains,
653 CLIB_CACHE_LINE_BYTES);
654 for (j = 0; j < tm->n_vlib_mains; j++)
656 vec_validate_ha (xd->tx_vectors[j], DPDK_TX_RING_SIZE,
657 sizeof(tx_ring_hdr_t), CLIB_CACHE_LINE_BYTES);
658 vec_reset_length (xd->tx_vectors[j]);
661 vec_validate_aligned (xd->rx_vectors, xd->rx_q_used,
662 CLIB_CACHE_LINE_BYTES);
663 for (j = 0; j< xd->rx_q_used; j++)
665 vec_validate_aligned (xd->rx_vectors[j], VLIB_FRAME_SIZE-1,
666 CLIB_CACHE_LINE_BYTES);
667 vec_reset_length (xd->rx_vectors[j]);
670 vec_validate_aligned (xd->frames, tm->n_vlib_mains,
671 CLIB_CACHE_LINE_BYTES);
673 /* FIXME Set up one TX-queue per worker thread */
676 f64 now = vlib_time_now(vm);
678 rnd = (u32) (now * 1e6);
679 rnd = random_u32 (&rnd);
681 memcpy (addr+2, &rnd, sizeof(rnd));
686 error = ethernet_register_interface
688 dpdk_device_class.index,
690 /* ethernet address */ addr,
691 &xd->vlib_hw_if_index,
697 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->vlib_hw_if_index);
698 xd->vlib_sw_if_index = sw->sw_if_index;
699 hi = vnet_get_hw_interface (dm->vnet_main, xd->vlib_hw_if_index);
704 if (nb_desc > dm->num_mbufs)
705 clib_warning ("%d mbufs allocated but total rx/tx ring size is %d\n",
706 dm->num_mbufs, nb_desc);
708 /* init next vhost-user if index */
709 dm->next_vu_if_id = 0;
715 * Tell the vlib physical memory allocator that we've handled
716 * the initialization. We don't actually do so until
717 * vlib_main(...) callls the dpdk config function.
719 int vlib_app_physmem_init (vlib_main_t * vm, physmem_main_t * pm,
720 int physmem_required)
725 static clib_error_t *
726 write_sys_fs (char * file_name, char * fmt, ...)
731 fd = open (file_name, O_WRONLY);
733 return clib_error_return_unix (0, "open `%s'", file_name);
737 s = va_format (0, fmt, &va);
739 vec_add1 (s, 0); // terminate c string
741 if (write (fd, s, vec_len (s)) < 0)
742 return clib_error_return_unix (0, "write '%s' to '%s'", s, file_name);
749 #define VIRTIO_PCI_NAME "virtio-pci"
751 static clib_error_t * dpdk_bind_eth_kernel_drivers (vlib_main_t * vm,
753 char * kernel_driver)
755 dpdk_main_t * dm = &dpdk_main;
756 unformat_input_t _in;
757 unformat_input_t * in = &_in;
758 clib_error_t * error = 0;
759 u8 * line = 0, * modcmd = 0, * path = 0;
760 u8 * pci_vid = 0, *pci_did = 0, * devname = 0;
761 char *driver_name = kernel_driver;
765 * Bail out now if we're not running as root.
766 * This allows non-privileged use of the packet generator, etc.
772 * Get all ethernet pci device numbers for the device type specified.
774 modcmd = format (0, "lspci -nDd %s | grep 0200 | "
775 "awk '{ print $1, $3 }'%c", pci_dev_id, 0);
776 if ((fp = popen ((const char *)modcmd, "r")) == NULL)
778 error = clib_error_return_unix (0,
779 "Unable to get %s ethernet pci devices.",
784 vec_validate (line, BUFSIZ);
785 vec_validate (path, BUFSIZ);
786 while (fgets ((char *)line, BUFSIZ, fp) != NULL)
790 line[strlen ((char *)line) - 1] = 0; // chomp trailing newline.
792 unformat_init_string (in, (char *)line, strlen((char *)line) + 1);
793 unformat(in, "%s %s:%s", &devname, &pci_vid, &pci_did);
797 * Blacklist all ethernet interfaces in the
798 * linux IP routing tables (route --inet --inet6)
800 if (strstr ((char *)dm->eth_if_blacklist, (char *)devname))
804 * If there are any devices whitelisted, then blacklist all devices
805 * which are not explicitly whitelisted.
807 if (dm->eth_if_whitelist &&
808 !strstr ((char *)dm->eth_if_whitelist, (char *)devname))
813 * Optimistically open the device as a netmap device.
815 if (eth_nm_open((char *)devname))
820 path = format (path, "/sys/bus/pci/devices/%s/driver/unbind%c",
824 * If the device is bound to a driver...
826 if (stat ((const char *)path, &st) == 0)
831 * If the interface is not a virtio...
833 if (!driver_name || strcmp(driver_name, VIRTIO_PCI_NAME))
836 * If it is already bound to driver, don't unbind/bind it.
838 device_path = format (0, "/sys/bus/pci/drivers/%s/%s/device%c",
839 driver_name, devname, 0);
840 if (stat ((const char *)device_path, &st) == 0)
843 vec_free (device_path);
847 * unbind it from the current driver
851 _vec_len (path) -= 1;
852 path = format (path, "%c", 0);
853 error = write_sys_fs ((char *)path, "%s", devname);
860 * DAW-FIXME: The following bind/unbind dance is necessary for the dpdk
861 * virtio poll-mode driver to work.
864 if (driver_name && !strcmp(driver_name, VIRTIO_PCI_NAME))
867 * bind interface to the native kernel module
870 path = format (path, "/sys/bus/pci/drivers/%s/bind%c",
872 error = write_sys_fs ((char *)path, "%s", devname);
877 * unbind interface from the native kernel module
879 _vec_len (path) -= 5;
880 path = format (path, "unbind%c", 0);
881 error = write_sys_fs ((char *)path, "%s", devname);
887 * bind the interface to igb_uio
892 path = format (path, "/sys/bus/pci/drivers/%s/new_id%c", driver_name, 0);
893 error = write_sys_fs ((char *) path, "%s %s", pci_vid, pci_did);
898 path = format (path, "/sys/bus/pci/drivers/%s/bind%c", driver_name, 0);
899 error = write_sys_fs ((char *) path, "%s", devname);
920 unformat_socket_mem (unformat_input_t * input, va_list * va)
922 uword ** r = va_arg (* va, uword **);
926 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
928 if (unformat (input, ","))
929 hash_set (*r, i, 1024);
930 else if (unformat (input, "%u,", &mem))
931 hash_set (*r, i, mem);
932 else if (unformat (input, "%u", &mem))
933 hash_set (*r, i, mem);
936 unformat_put_input (input);
947 get_node_free_hugepages_num (u32 node, u32 page_size)
952 tmp = format (0, "/sys/devices/system/node/node%u/hugepages/hugepages-%ukB/"
953 "free_hugepages%c", node, page_size, 0);
954 fp = fopen ((char *) tmp, "r");
962 vec_validate (buffer, 256-1);
963 if (fgets ((char *)buffer, 256, fp))
966 unformat_init_string (&in, (char *) buffer, strlen ((char *) buffer));
967 unformat(&in, "%u", &pages_avail);
978 static clib_error_t *
979 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
981 clib_error_t * error = 0;
982 dpdk_main_t * dm = &dpdk_main;
983 vlib_thread_main_t * tm = vlib_get_thread_main();
986 u8 * rte_cmd = 0, * ethname = 0;
992 int rxrings, txrings, rxslots, txslots, txburst;
995 unformat_input_t _in;
996 unformat_input_t * in = &_in;
1001 u8 * socket_mem = 0;
1003 // MATT-FIXME: inverted virtio-vhost logic to use virtio by default
1004 dm->use_virtio_vhost = 1;
1006 while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
1008 /* Prime the pump */
1009 if (unformat (input, "no-hugetlb"))
1011 vec_add1 (dm->eal_init_args, (u8 *) "no-huge");
1015 else if (unformat (input, "enable-tcp-udp-checksum"))
1017 dm->buffer_flags_template &=
1018 ~(IP_BUFFER_L4_CHECKSUM_CORRECT | IP_BUFFER_L4_CHECKSUM_COMPUTED);
1021 else if (unformat (input, "decimal-interface-names"))
1022 dm->interface_name_format_decimal = 1;
1024 else if (unformat (input, "no-multi-seg"))
1025 dm->no_multi_seg = 1;
1027 else if (unformat (input, "dev %s", &pci_dev_id))
1029 if (dm->eth_if_whitelist)
1032 * Don't add duplicate device id's.
1034 if (strstr ((char *)dm->eth_if_whitelist, (char *)pci_dev_id))
1037 _vec_len (dm->eth_if_whitelist) -= 1; // chomp trailing NULL.
1038 dm->eth_if_whitelist = format (dm->eth_if_whitelist, " %s%c",
1042 dm->eth_if_whitelist = format (0, "%s%c", pci_dev_id, 0);
1046 else if (unformat(input, "netmap %s/%d:%d/%d:%d/%d",
1047 &nmname, &rxrings, &rxslots, &txrings, &txslots, &txburst)) {
1050 eth_nm_args(nmname, rxrings, rxslots, txrings, txslots, txburst);
1052 error = clib_error_return (0, "%s", rv);
1055 }else if (unformat(input, "netmap %s", &nmname)) {
1058 eth_nm_args(nmname, 0, 0, 0, 0, 0);
1060 error = clib_error_return (0, "%s", rv);
1066 else if (unformat (input, "num-mbufs %d", &dm->num_mbufs))
1068 else if (unformat (input, "max-tx-queues %d", &dm->max_tx_queues))
1070 else if (unformat (input, "kni %d", &dm->num_kni))
1072 else if (unformat (input, "uio-driver %s", &dm->uio_driver_name))
1074 else if (unformat (input, "vhost-user-coalesce-frames %d", &dm->vhost_coalesce_frames))
1076 else if (unformat (input, "vhost-user-coalesce-time %f", &dm->vhost_coalesce_time))
1078 else if (unformat (input, "enable-vhost-user"))
1079 dm->use_virtio_vhost = 0;
1080 else if (unformat (input, "rss %d", &dm->use_rss))
1084 else if (unformat(input, #a)) \
1086 if (!strncmp(#a, "no-pci", 6)) \
1088 tmp = format (0, "--%s%c", #a, 0); \
1089 vec_add1 (dm->eal_init_args, tmp); \
1091 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 else if (!strncmp(#a, "socket-mem", 10)) \
1102 socket_mem = vec_dup (s); \
1103 tmp = format (0, "--%s%c", #a, 0); \
1104 vec_add1 (dm->eal_init_args, tmp); \
1106 vec_add1 (dm->eal_init_args, s); \
1108 foreach_eal_double_hyphen_arg
1112 else if (unformat(input, #a " %s", &s)) \
1114 tmp = format (0, "-%s%c", #b, 0); \
1115 vec_add1 (dm->eal_init_args, tmp); \
1117 vec_add1 (dm->eal_init_args, s); \
1119 foreach_eal_single_hyphen_arg
1123 else if (unformat(input, #a " %s", &s)) \
1125 tmp = format (0, "-%s%c", #b, 0); \
1126 vec_add1 (dm->eal_init_args, tmp); \
1128 vec_add1 (dm->eal_init_args, s); \
1129 dm->a##_set_manually = 1; \
1131 foreach_eal_single_hyphen_mandatory_arg
1134 else if (unformat(input, "default"))
1139 error = clib_error_return (0, "unknown input `%U'",
1140 format_unformat_error, input);
1145 if (!dm->uio_driver_name)
1146 dm->uio_driver_name = format (0, "igb_uio");
1149 * Use 1G huge pages if available.
1151 if (!no_huge && !huge_dir)
1153 uword * mem_by_socket = hash_create (0, sizeof (uword));
1159 umount(DEFAULT_HUGE_DIR);
1161 /* Process "socket-mem" parameter value */
1162 if (vec_len (socket_mem))
1164 unformat_input_t in;
1165 unformat_init_vector(&in, socket_mem);
1166 unformat(&in, "%U", unformat_socket_mem, &mem_by_socket);
1172 /* check if available enough 1GB pages for each socket */
1173 clib_bitmap_foreach (c, tm->cpu_socket_bitmap, ({
1174 uword * p = hash_get (mem_by_socket, c);
1180 u32 pages_num_1g = mem / 1024;
1181 u32 pages_num_2m = mem / 2;
1184 pages_avail = get_node_free_hugepages_num(c, 1048576);
1185 if (!(pages_avail >= pages_num_1g))
1188 pages_avail = get_node_free_hugepages_num(c, 2048);
1189 if (!(pages_avail >= pages_num_2m))
1195 hash_free (mem_by_socket);
1197 rv = mkdir(VPP_RUN_DIR, 0755);
1198 if (rv && errno != EEXIST)
1200 error = clib_error_return (0, "mkdir '%s' failed errno %d",
1201 VPP_RUN_DIR, errno);
1205 rv = mkdir(DEFAULT_HUGE_DIR, 0755);
1206 if (rv && errno != EEXIST)
1208 error = clib_error_return (0, "mkdir '%s' failed errno %d",
1209 DEFAULT_HUGE_DIR, errno);
1215 rv = mount("none", DEFAULT_HUGE_DIR, "hugetlbfs", 0, "pagesize=1G");
1219 rv = mount("none", DEFAULT_HUGE_DIR, "hugetlbfs", 0, NULL);
1223 return clib_error_return (0, "not enough free huge pages");
1228 error = clib_error_return (0, "mount failed %d", errno);
1232 tmp = format (0, "--huge-dir%c", 0);
1233 vec_add1 (dm->eal_init_args, tmp);
1234 tmp = format (0, "%s%c", DEFAULT_HUGE_DIR, 0);
1235 vec_add1 (dm->eal_init_args, tmp);
1238 tmp = format (0, "--file-prefix%c", 0);
1239 vec_add1 (dm->eal_init_args, tmp);
1240 tmp = format (0, "vpp%c", 0);
1241 vec_add1 (dm->eal_init_args, tmp);
1246 * Blacklist all ethernet interfaces in the linux IP routing tables.
1248 dm->eth_if_blacklist = format (0, "%c", 0);
1249 rte_cmd = format (0, "route --inet --inet6 -n|awk '{print $7}'|sort -u|"
1250 "egrep $(echo $(ls -1d /sys/class/net/*/device|"
1251 "cut -d/ -f5)|sed -s 's/ /|/g')%c", 0);
1252 if ((rte_fp = popen ((const char *)rte_cmd, "r")) == NULL)
1254 error = clib_error_return_unix (0, "Unable to find blacklist ethernet"
1255 " interface(s) in linux routing tables.");
1260 vec_validate (ethname, BUFSIZ);
1261 while (fgets ((char *)ethname, BUFSIZ, rte_fp) != NULL)
1264 u8 * rlnk_cmd = 0, * devname = 0;
1266 ethname[strlen ((char *)ethname) - 1] = 0; // chomp trailing newline.
1268 rlnk_cmd = format (0, "readlink /sys/class/net/%s%c",
1271 if ((rlnk_fp = popen ((const char *)rlnk_cmd, "r")) == NULL)
1273 error = clib_error_return_unix (0, "Unable to read %s link.",
1278 vec_validate (devname, BUFSIZ);
1279 while (fgets ((char *)devname, BUFSIZ, rlnk_fp) != NULL)
1284 * Extract the device PCI ID name from the link. It is the first
1285 * PCI ID searching backwards from the end of the link pathname.
1287 * readlink /sys/class/net/eth0
1288 * ../../devices/pci0000:00/0000:00:0a.0/virtio4/net/eth0
1290 for (pci_id = (char *)((devname + strlen((char *)devname)));
1291 ((u8 *)pci_id > devname) && *pci_id != '.'; pci_id--)
1295 * Verify that the field found is a valid PCI ID.
1297 if ((*(pci_id - 1) == '.') || ((u8 *)(pci_id - 11) < devname) ||
1298 (*(pci_id - 11) != '/') || (*(pci_id - 3) != ':') ||
1299 (*(pci_id - 6) != ':'))
1301 devname[strlen ((char *)devname) - 1] = 0; // chomp trailing newline.
1302 clib_warning ("Unable to extract %s PCI ID (0x%llx \"%s\") "
1303 "from 0x%llx \"%s\"", ethname, pci_id, pci_id,
1311 /* Don't blacklist any interfaces which have been whitelisted.
1313 if (dm->eth_if_whitelist &&
1314 strstr ((char *)dm->eth_if_whitelist, (char *)pci_id))
1317 _vec_len (dm->eth_if_blacklist) -= 1; // chomp trailing NULL.
1318 dm->eth_if_blacklist = format (dm->eth_if_blacklist, " %s%c",
1324 vec_free (rlnk_cmd);
1336 /* I'll bet that -c and -n must be the first and second args... */
1337 if (!dm->coremask_set_manually)
1339 vlib_thread_registration_t * tr;
1340 uword * coremask = 0;
1343 /* main thread core */
1344 coremask = clib_bitmap_set(coremask, tm->main_lcore, 1);
1346 for (i = 0; i < vec_len (tm->registrations); i++)
1348 tr = tm->registrations[i];
1349 coremask = clib_bitmap_or(coremask, tr->coremask);
1352 vec_insert (dm->eal_init_args, 2, 1);
1353 dm->eal_init_args[1] = (u8 *) "-c";
1354 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1355 dm->eal_init_args[2] = tmp;
1356 clib_bitmap_free(coremask);
1359 if (!dm->nchannels_set_manually)
1361 vec_insert (dm->eal_init_args, 2, 3);
1362 dm->eal_init_args[3] = (u8 *) "-n";
1363 tmp = format (0, "%d", dm->nchannels);
1364 dm->eal_init_args[4] = tmp;
1368 * If there are whitelisted devices,
1369 * add the whitelist option & device list to the dpdk arg list...
1371 if (dm->eth_if_whitelist)
1373 unformat_init_string (in, (char *)dm->eth_if_whitelist,
1374 vec_len(dm->eth_if_whitelist) - 1);
1379 * Otherwise add the blacklisted devices to the dpdk arg list.
1383 unformat_init_string (in, (char *)dm->eth_if_blacklist,
1384 vec_len(dm->eth_if_blacklist) - 1);
1388 while (unformat_check_input (in) != UNFORMAT_END_OF_INPUT)
1390 tmp = format (0, fmt, 0);
1391 vec_add1 (dm->eal_init_args, tmp);
1392 unformat (in, "%s", &pci_dev_id);
1393 vec_add1 (dm->eal_init_args, pci_dev_id);
1399 * Bind Virtio pci devices to the igb_uio kernel driver.
1401 error = dpdk_bind_eth_kernel_drivers (vm, "1af4:1000", VIRTIO_PCI_NAME);
1406 * Bind vmxnet3 pci devices to the igb_uio kernel driver.
1408 error = dpdk_bind_eth_kernel_drivers (vm, "15ad:07b0",
1409 (char *) dm->uio_driver_name);
1414 * Bind Intel ethernet pci devices to igb_uio kernel driver.
1416 error = dpdk_bind_eth_kernel_drivers (vm, "8086:",
1417 (char *) dm->uio_driver_name);
1419 * Bind Cisco VIC ethernet pci devices to igb_uio kernel driver.
1421 error = dpdk_bind_eth_kernel_drivers (vm, "1137:0043",
1422 (char *) dm->uio_driver_name);
1425 /* set master-lcore */
1426 tmp = format (0, "--master-lcore%c", 0);
1427 vec_add1 (dm->eal_init_args, tmp);
1428 tmp = format (0, "%u%c", tm->main_lcore, 0);
1429 vec_add1 (dm->eal_init_args, tmp);
1431 /* NULL terminate the "argv" vector, in case of stupidity */
1432 vec_add1 (dm->eal_init_args, 0);
1433 _vec_len(dm->eal_init_args) -= 1;
1435 /* Set up DPDK eal and packet mbuf pool early. */
1437 log_level = (CLIB_DEBUG > 0) ? RTE_LOG_DEBUG : RTE_LOG_NOTICE;
1439 rte_set_log_level (log_level);
1443 /* make copy of args as rte_eal_init tends to mess up with arg array */
1444 for (i = 1; i < vec_len(dm->eal_init_args); i++)
1445 dm->eal_init_args_str = format(dm->eal_init_args_str, "%s ",
1446 dm->eal_init_args[i]);
1448 ret = rte_eal_init(vec_len(dm->eal_init_args), (char **) dm->eal_init_args);
1450 /* lazy umount hugepages */
1451 umount2(DEFAULT_HUGE_DIR, MNT_DETACH);
1454 return clib_error_return (0, "rte_eal_init returned %d", ret);
1456 /* main thread 1st */
1457 error = vlib_buffer_pool_create(vm, dm->num_mbufs, MBUF_SIZE, rte_socket_id());
1461 for (i = 0; i < RTE_MAX_LCORE; i++)
1463 error = vlib_buffer_pool_create(vm, dm->num_mbufs, MBUF_SIZE,
1464 rte_lcore_to_socket_id(i));
1471 vlib_node_runtime_t * rt = vlib_node_get_runtime (vm, dpdk_input_node.index);
1472 rt->function = dpdk_input_rss;
1478 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1480 void dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1482 vnet_main_t * vnm = vnet_get_main();
1483 struct rte_eth_link prev_link = xd->link;
1485 u8 hw_flags_chg = 0;
1487 /* only update link state for PMD interfaces */
1488 if (xd->dev_type != VNET_DPDK_DEV_ETH)
1491 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1492 memset(&xd->link, 0, sizeof(xd->link));
1493 rte_eth_link_get_nowait (xd->device_index, &xd->link);
1495 if (LINK_STATE_ELOGS)
1497 vlib_main_t * vm = vlib_get_main();
1498 ELOG_TYPE_DECLARE(e) = {
1500 "update-link-state: sw_if_index %d, admin_up %d,"
1501 "old link_state %d new link_state %d",
1502 .format_args = "i4i1i1i1",
1505 struct { u32 sw_if_index; u8 admin_up;
1506 u8 old_link_state; u8 new_link_state;} *ed;
1507 ed = ELOG_DATA (&vm->elog_main, e);
1508 ed->sw_if_index = xd->vlib_sw_if_index;
1509 ed->admin_up = xd->admin_up;
1510 ed->old_link_state = (u8)
1511 vnet_hw_interface_is_link_up (vnm, xd->vlib_hw_if_index);
1512 ed->new_link_state = (u8) xd->link.link_status;
1515 if ((xd->admin_up == 1) &&
1516 ((xd->link.link_status != 0) ^
1517 vnet_hw_interface_is_link_up (vnm, xd->vlib_hw_if_index)))
1520 hw_flags |= (xd->link.link_status ?
1521 VNET_HW_INTERFACE_FLAG_LINK_UP: 0);
1524 if (hw_flags_chg || (xd->link.link_duplex != prev_link.link_duplex))
1527 switch (xd->link.link_duplex)
1529 case ETH_LINK_HALF_DUPLEX:
1530 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1532 case ETH_LINK_FULL_DUPLEX:
1533 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1539 if (hw_flags_chg || (xd->link.link_speed != prev_link.link_speed))
1542 switch (xd->link.link_speed)
1544 case ETH_LINK_SPEED_10:
1545 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10M;
1547 case ETH_LINK_SPEED_100:
1548 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_100M;
1550 case ETH_LINK_SPEED_1000:
1551 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_1G;
1553 case ETH_LINK_SPEED_10000:
1554 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10G;
1556 case ETH_LINK_SPEED_40G:
1557 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_40G;
1562 clib_warning("unknown link speed %d", xd->link.link_speed);
1568 if (LINK_STATE_ELOGS)
1570 vlib_main_t * vm = vlib_get_main();
1572 ELOG_TYPE_DECLARE(e) = {
1573 .format = "update-link-state: sw_if_index %d, new flags %d",
1574 .format_args = "i4i4",
1577 struct { u32 sw_if_index; u32 flags; } *ed;
1578 ed = ELOG_DATA (&vm->elog_main, e);
1579 ed->sw_if_index = xd->vlib_sw_if_index;
1580 ed->flags = hw_flags;
1582 vnet_hw_interface_set_flags (vnm, xd->vlib_hw_if_index, hw_flags);
1587 dpdk_process (vlib_main_t * vm,
1588 vlib_node_runtime_t * rt,
1591 clib_error_t * error;
1592 dpdk_main_t * dm = &dpdk_main;
1594 vlib_thread_main_t * tm = vlib_get_thread_main();
1598 error = dpdk_lib_init (dm);
1601 * Turn on the input node if we found some devices to drive
1602 * and we're not running worker threads or i/o threads
1605 if (error == 0 && vec_len(dm->devices) > 0)
1607 if (tm->n_vlib_mains == 1)
1608 vlib_node_set_state (vm, dpdk_input_node.index,
1609 VLIB_NODE_STATE_POLLING);
1610 else if (tm->main_thread_is_io_node)
1611 vlib_node_set_state (vm, dpdk_io_input_node.index,
1612 VLIB_NODE_STATE_POLLING);
1613 else if (!dm->have_io_threads)
1614 for (i=0; i < tm->n_vlib_mains; i++)
1615 if (vec_len(dm->devices_by_cpu[i]) > 0)
1616 vlib_node_set_state (vlib_mains[i], dpdk_input_node.index,
1617 VLIB_NODE_STATE_POLLING);
1621 clib_error_report (error);
1623 dpdk_vhost_user_process_init(&vu_state);
1625 dm->io_thread_release = 1;
1627 f64 now = vlib_time_now (vm);
1628 vec_foreach (xd, dm->devices)
1630 dpdk_update_link_state (xd, now);
1635 vlib_process_wait_for_event_or_clock (vm, 5.0);
1637 if (dpdk_get_admin_up_down_in_progress())
1638 /* skip the poll if an admin up down is in progress (on any interface) */
1641 vec_foreach (xd, dm->devices)
1643 f64 now = vlib_time_now (vm);
1644 if ((now - xd->time_last_stats_update) >= DPDK_STATS_POLL_INTERVAL)
1645 dpdk_update_counters (xd, now);
1646 if ((now - xd->time_last_link_update) >= DPDK_LINK_POLL_INTERVAL)
1647 dpdk_update_link_state (xd, now);
1649 if (xd->dev_type == VNET_DPDK_DEV_VHOST_USER)
1650 if (dpdk_vhost_user_process_if(vm, xd, vu_state) != 0)
1655 dpdk_vhost_user_process_cleanup(vu_state);
1660 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1661 .function = dpdk_process,
1662 .type = VLIB_NODE_TYPE_PROCESS,
1663 .name = "dpdk-process",
1664 .process_log2_n_stack_bytes = 17,
1668 dpdk_init (vlib_main_t * vm)
1670 dpdk_main_t * dm = &dpdk_main;
1672 clib_error_t * error = 0;
1673 vlib_thread_main_t * tm = vlib_get_thread_main();
1675 /* verify that structs are cacheline aligned */
1676 ASSERT(offsetof(dpdk_device_t, cacheline0) == 0);
1677 ASSERT(offsetof(dpdk_device_t, cacheline1) == CLIB_CACHE_LINE_BYTES);
1678 ASSERT(offsetof(dpdk_worker_t, cacheline0) == 0);
1679 ASSERT(offsetof(frame_queue_trace_t, cacheline0) == 0);
1681 /* Add references to DPDK Driver Constructor functions to get the dynamic
1682 * loader to pull in the driver library & run the constructors.
1686 void devinitfn_ ##d(void); \
1687 __attribute__((unused)) void (* volatile pf)(void); \
1688 pf = devinitfn_ ##d; \
1691 #ifdef RTE_LIBRTE_EM_PMD
1695 #ifdef RTE_LIBRTE_IGB_PMD
1699 #ifdef RTE_LIBRTE_IXGBE_PMD
1703 #ifdef RTE_LIBRTE_I40E_PMD
1705 _(rte_i40evf_driver)
1708 #ifdef RTE_LIBRTE_FM10K_PMD
1712 #ifdef RTE_LIBRTE_VIRTIO_PMD
1713 _(rte_virtio_driver)
1716 #ifdef RTE_LIBRTE_VMXNET3_PMD
1717 _(rte_vmxnet3_driver)
1720 #ifdef RTE_LIBRTE_VICE_PMD
1724 #ifdef RTE_LIBRTE_ENIC_PMD
1728 #ifdef RTE_LIBRTE_PMD_AF_PACKET
1729 _(pmd_af_packet_drv)
1732 #ifdef RTE_LIBRTE_CXGBE_PMD
1739 * At the moment, the ThunderX NIC driver doesn't have
1740 * an entry point named "devinitfn_rte_xxx_driver"
1745 __attribute__((unused)) void (* volatile pf)(void); \
1749 #ifdef RTE_LIBRTE_THUNDERVNIC_PMD
1750 _(rte_nicvf_pmd_init)
1755 dm->vnet_main = vnet_get_main();
1757 ei = vlib_get_node_by_name (vm, (u8 *) "ethernet-input");
1759 return clib_error_return (0, "ethernet-input node AWOL");
1761 dm->ethernet_input_node_index = ei->index;
1764 dm->num_mbufs = dm->num_mbufs ? dm->num_mbufs : NB_MBUF;
1765 vec_add1 (dm->eal_init_args, (u8 *) "vnet");
1767 dm->dpdk_device_by_kni_port_id = hash_create (0, sizeof (uword));
1768 dm->vu_sw_if_index_by_listener_fd = hash_create (0, sizeof (uword));
1769 dm->vu_sw_if_index_by_sock_fd = hash_create (0, sizeof (uword));
1771 /* $$$ use n_thread_stacks since it's known-good at this point */
1772 vec_validate (dm->recycle, tm->n_thread_stacks - 1);
1774 /* initialize EFD (early fast discard) default settings */
1775 dm->efd.enabled = DPDK_EFD_DISABLED;
1776 dm->efd.queue_hi_thresh = ((DPDK_EFD_DEFAULT_DEVICE_QUEUE_HI_THRESH_PCT *
1777 DPDK_NB_RX_DESC_10GE)/100);
1778 dm->efd.consec_full_frames_hi_thresh =
1779 DPDK_EFD_DEFAULT_CONSEC_FULL_FRAMES_HI_THRESH;
1781 /* vhost-user coalescence frames defaults */
1782 dm->vhost_coalesce_frames = 32;
1783 dm->vhost_coalesce_time = 1e-3;
1785 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1786 dm->buffer_flags_template =
1787 (VLIB_BUFFER_TOTAL_LENGTH_VALID
1788 | IP_BUFFER_L4_CHECKSUM_COMPUTED
1789 | IP_BUFFER_L4_CHECKSUM_CORRECT);
1792 if ((error = vlib_call_init_function (vm, dpdk_cli_init)))
1798 VLIB_INIT_FUNCTION (dpdk_init);