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);
221 dpdk_device_lock_free(dpdk_device_t * xd)
225 for (q = 0; q < vec_len(xd->lockp); q++)
226 clib_mem_free((void *) xd->lockp[q]);
231 static clib_error_t *
232 dpdk_lib_init (dpdk_main_t * dm)
237 clib_error_t * error;
238 vlib_main_t * vm = vlib_get_main();
239 vlib_thread_main_t * tm = vlib_get_thread_main();
240 vnet_sw_interface_t * sw;
241 vnet_hw_interface_t * hi;
243 vlib_thread_registration_t * tr;
247 u8 af_packet_port_id = 0;
249 dm->input_cpu_first_index = 0;
250 dm->input_cpu_count = 1;
252 /* find out which cpus will be used for input */
253 p = hash_get_mem (tm->thread_registrations_by_name, "io");
254 tr = p ? (vlib_thread_registration_t *) p[0] : 0;
256 if (!tr || tr->count == 0)
258 /* no io threads, workers doing input */
259 p = hash_get_mem (tm->thread_registrations_by_name, "workers");
260 tr = p ? (vlib_thread_registration_t *) p[0] : 0;
264 dm->have_io_threads = 1;
267 if (tr && tr->count > 0)
269 dm->input_cpu_first_index = tr->first_index;
270 dm->input_cpu_count = tr->count;
273 vec_validate_aligned (dm->devices_by_cpu, tm->n_vlib_mains - 1,
274 CLIB_CACHE_LINE_BYTES);
276 vec_validate_aligned (dm->workers, tm->n_vlib_mains - 1,
277 CLIB_CACHE_LINE_BYTES);
280 if(rte_netmap_probe() < 0)
281 return clib_error_return (0, "rte netmap probe failed");
284 nports = rte_eth_dev_count();
287 clib_warning ("DPDK drivers found no ports...");
291 clib_warning ("DPDK drivers found %d ports...", nports);
294 * All buffers are all allocated from the same rte_mempool.
295 * Thus they all have the same number of data bytes.
297 dm->vlib_buffer_free_list_index =
298 vlib_buffer_get_or_create_free_list (
299 vm, VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES, "dpdk rx");
301 for (i = 0; i < nports; i++)
305 struct rte_eth_dev_info dev_info;
307 struct rte_eth_link l;
309 /* Create vnet interface */
310 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
311 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
312 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
313 xd->cpu_socket = (i8) rte_eth_dev_socket_id(i);
314 rte_eth_dev_info_get(i, &dev_info);
316 memcpy(&xd->tx_conf, &dev_info.default_txconf,
317 sizeof(struct rte_eth_txconf));
318 if (dm->no_multi_seg)
320 xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
321 port_conf_template.rxmode.jumbo_frame = 0;
325 xd->tx_conf.txq_flags &= ~ETH_TXQ_FLAGS_NOMULTSEGS;
326 port_conf_template.rxmode.jumbo_frame = 1;
329 memcpy(&xd->port_conf, &port_conf_template, sizeof(struct rte_eth_conf));
331 xd->tx_q_used = clib_min(dev_info.max_tx_queues, tm->n_vlib_mains);
333 if (dm->max_tx_queues)
334 xd->tx_q_used = clib_min(xd->tx_q_used, dm->max_tx_queues);
336 if (dm->use_rss > 1 && dev_info.max_rx_queues >= dm->use_rss)
338 xd->rx_q_used = dm->use_rss;
339 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
340 xd->port_conf.rx_adv_conf.rss_conf.rss_hf = ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
345 xd->dev_type = VNET_DPDK_DEV_ETH;
347 /* workaround for drivers not setting driver_name */
348 if (!dev_info.driver_name)
349 dev_info.driver_name = dev_info.pci_dev->driver->name;
350 ASSERT(dev_info.driver_name);
355 #define _(s,f) else if (!strcmp(dev_info.driver_name, s)) \
356 xd->pmd = VNET_DPDK_PMD_##f;
362 xd->pmd = VNET_DPDK_PMD_UNKNOWN;
367 case VNET_DPDK_PMD_E1000EM:
368 case VNET_DPDK_PMD_IGB:
369 case VNET_DPDK_PMD_IGBVF:
370 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
374 case VNET_DPDK_PMD_IXGBE:
375 case VNET_DPDK_PMD_IXGBEVF:
376 case VNET_DPDK_PMD_THUNDERX:
377 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
378 xd->nb_rx_desc = DPDK_NB_RX_DESC_10GE;
379 xd->nb_tx_desc = DPDK_NB_TX_DESC_10GE;
383 case VNET_DPDK_PMD_VICE:
384 case VNET_DPDK_PMD_ENIC:
385 rte_eth_link_get_nowait(xd->device_index, &l);
386 if (l.link_speed == 40000)
388 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
389 xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE;
390 xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
394 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
395 xd->nb_rx_desc = DPDK_NB_RX_DESC_10GE;
396 xd->nb_tx_desc = DPDK_NB_TX_DESC_10GE;
400 /* Intel Fortville */
401 case VNET_DPDK_PMD_I40E:
402 case VNET_DPDK_PMD_I40EVF:
403 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
404 xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE;
405 xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
407 switch (dev_info.pci_dev->id.device_id) {
408 case I40E_DEV_ID_10G_BASE_T:
409 case I40E_DEV_ID_SFP_XL710:
410 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
412 case I40E_DEV_ID_QSFP_A:
413 case I40E_DEV_ID_QSFP_B:
414 case I40E_DEV_ID_QSFP_C:
415 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
418 rte_eth_link_get_nowait(xd->device_index, &l);
419 xd->port_type = l.link_speed == 10000 ?
420 VNET_DPDK_PORT_TYPE_ETH_10G : VNET_DPDK_PORT_TYPE_ETH_40G;
423 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
427 case VNET_DPDK_PMD_CXGBE:
428 switch (dev_info.pci_dev->id.device_id) {
429 case 0x5410: /* T580-LP-cr */
430 xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE;
431 xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
432 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
435 xd->nb_rx_desc = DPDK_NB_RX_DESC_10GE;
436 xd->nb_tx_desc = DPDK_NB_TX_DESC_10GE;
437 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
441 /* Intel Red Rock Canyon */
442 case VNET_DPDK_PMD_FM10K:
443 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
444 xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE;
445 xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
449 case VNET_DPDK_PMD_VIRTIO:
450 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
451 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
452 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
456 case VNET_DPDK_PMD_VMXNET3:
457 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
458 xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
461 case VNET_DPDK_PMD_AF_PACKET:
462 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
463 xd->af_packet_port_id = af_packet_port_id++;
467 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
471 if(strncmp(dev_info.driver_name, "vale", 4) == 0
472 || strncmp(dev_info.driver_name, "netmap", 6) == 0)
474 xd->pmd = VNET_DPDK_PMD_NETMAP;
475 xd->port_type = VNET_DPDK_PORT_TYPE_NETMAP;
482 * Ensure default mtu is not > the mtu read from the hardware.
483 * Otherwise rte_eth_dev_configure() will fail and the port will
486 xd->port_conf.rxmode.max_rx_pkt_len =
487 (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen) ?
488 dev_info.max_rx_pktlen : ETHERNET_MAX_PACKET_BYTES;
491 * DAW-FIXME: VMXNET3 driver doesn't support jumbo / multi-buffer pkts
493 if (xd->pmd == VNET_DPDK_PMD_VMXNET3)
495 xd->port_conf.rxmode.max_rx_pkt_len = 1518;
496 xd->port_conf.rxmode.jumbo_frame = 0;
499 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
501 f64 now = vlib_time_now(vm);
503 rnd = (u32) (now * 1e6);
504 rnd = random_u32 (&rnd);
505 memcpy (addr+2, &rnd, sizeof(rnd));
510 rte_eth_macaddr_get(i,(struct ether_addr *)addr);
512 if (xd->tx_q_used < tm->n_vlib_mains)
513 dpdk_device_lock_init(xd);
515 xd->device_index = xd - dm->devices;
516 ASSERT(i == xd->device_index);
517 xd->per_interface_next_index = ~0;
519 /* assign interface to input thread */
520 dpdk_device_and_queue_t * dq;
523 for (q = 0; q < xd->rx_q_used; q++)
525 int cpu = dm->input_cpu_first_index + next_cpu;
526 unsigned lcore = vlib_worker_threads[cpu].dpdk_lcore_id;
529 * numa node for worker thread handling this queue
530 * needed for taking buffers from the right mempool
532 vec_validate(xd->cpu_socket_id_by_queue, q);
533 xd->cpu_socket_id_by_queue[q] = rte_lcore_to_socket_id(lcore);
536 * construct vector of (device,queue) pairs for each worker thread
538 vec_add2(dm->devices_by_cpu[cpu], dq, 1);
539 dq->device = xd->device_index;
543 if (next_cpu == dm->input_cpu_count)
547 vec_validate_aligned (xd->tx_vectors, tm->n_vlib_mains,
548 CLIB_CACHE_LINE_BYTES);
549 for (j = 0; j < tm->n_vlib_mains; j++)
551 vec_validate_ha (xd->tx_vectors[j], DPDK_TX_RING_SIZE,
552 sizeof(tx_ring_hdr_t), CLIB_CACHE_LINE_BYTES);
553 vec_reset_length (xd->tx_vectors[j]);
556 vec_validate_aligned (xd->rx_vectors, xd->rx_q_used,
557 CLIB_CACHE_LINE_BYTES);
558 for (j = 0; j< xd->rx_q_used; j++)
560 vec_validate_aligned (xd->rx_vectors[j], VLIB_FRAME_SIZE-1,
561 CLIB_CACHE_LINE_BYTES);
562 vec_reset_length (xd->rx_vectors[j]);
565 vec_validate_aligned (xd->frames, tm->n_vlib_mains,
566 CLIB_CACHE_LINE_BYTES);
568 rv = dpdk_port_setup(dm, xd);
573 /* count the number of descriptors used for this device */
574 nb_desc += xd->nb_rx_desc + xd->nb_tx_desc * xd->tx_q_used;
576 error = ethernet_register_interface
578 dpdk_device_class.index,
580 /* ethernet address */ addr,
581 &xd->vlib_hw_if_index,
586 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->vlib_hw_if_index);
587 xd->vlib_sw_if_index = sw->sw_if_index;
588 hi = vnet_get_hw_interface (dm->vnet_main, xd->vlib_hw_if_index);
591 * DAW-FIXME: The Cisco VIC firmware does not provide an api for a
592 * driver to dynamically change the mtu. If/when the
593 * VIC firmware gets fixed, then this should be removed.
595 if (xd->pmd == VNET_DPDK_PMD_VICE ||
596 xd->pmd == VNET_DPDK_PMD_ENIC)
599 * Initialize mtu to what has been set by CIMC in the firmware cfg.
601 hi->max_packet_bytes = dev_info.max_rx_pktlen;
603 * remove vlan tag from VIC port to fix VLAN0 issue.
604 * TODO Handle VLAN tagged traffic
607 vlan_off = rte_eth_dev_get_vlan_offload(xd->device_index);
608 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
609 rte_eth_dev_set_vlan_offload(xd->device_index, vlan_off);
612 * DAW-FIXME: VMXNET3 driver doesn't support jumbo / multi-buffer pkts
614 else if (xd->pmd == VNET_DPDK_PMD_VMXNET3)
615 hi->max_packet_bytes = 1518;
617 hi->max_l3_packet_bytes[VLIB_RX] = hi->max_l3_packet_bytes[VLIB_TX] =
618 xd->port_conf.rxmode.max_rx_pkt_len - sizeof(ethernet_header_t);
620 rte_eth_dev_set_mtu(xd->device_index, hi->max_packet_bytes);
624 clib_warning("Initializing KNI interfaces...");
625 rte_kni_init(dm->num_kni);
626 for (i = 0; i < dm->num_kni; i++)
631 /* Create vnet interface */
632 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
633 xd->dev_type = VNET_DPDK_DEV_KNI;
635 xd->device_index = xd - dm->devices;
636 ASSERT(nports + i == xd->device_index);
637 xd->per_interface_next_index = ~0;
640 hash_set (dm->dpdk_device_by_kni_port_id, i, xd - dm->devices);
643 /* assign interface to input thread */
644 dpdk_device_and_queue_t * dq;
645 vec_add2(dm->devices_by_cpu[dm->input_cpu_first_index], dq, 1);
646 dq->device = xd->device_index;
649 vec_validate_aligned (xd->tx_vectors, tm->n_vlib_mains,
650 CLIB_CACHE_LINE_BYTES);
651 for (j = 0; j < tm->n_vlib_mains; j++)
653 vec_validate_ha (xd->tx_vectors[j], DPDK_TX_RING_SIZE,
654 sizeof(tx_ring_hdr_t), CLIB_CACHE_LINE_BYTES);
655 vec_reset_length (xd->tx_vectors[j]);
658 vec_validate_aligned (xd->rx_vectors, xd->rx_q_used,
659 CLIB_CACHE_LINE_BYTES);
660 for (j = 0; j< xd->rx_q_used; j++)
662 vec_validate_aligned (xd->rx_vectors[j], VLIB_FRAME_SIZE-1,
663 CLIB_CACHE_LINE_BYTES);
664 vec_reset_length (xd->rx_vectors[j]);
667 vec_validate_aligned (xd->frames, tm->n_vlib_mains,
668 CLIB_CACHE_LINE_BYTES);
670 /* FIXME Set up one TX-queue per worker thread */
673 f64 now = vlib_time_now(vm);
675 rnd = (u32) (now * 1e6);
676 rnd = random_u32 (&rnd);
678 memcpy (addr+2, &rnd, sizeof(rnd));
683 error = ethernet_register_interface
685 dpdk_device_class.index,
687 /* ethernet address */ addr,
688 &xd->vlib_hw_if_index,
694 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->vlib_hw_if_index);
695 xd->vlib_sw_if_index = sw->sw_if_index;
696 hi = vnet_get_hw_interface (dm->vnet_main, xd->vlib_hw_if_index);
700 if (nb_desc > dm->num_mbufs)
701 clib_warning ("%d mbufs allocated but total rx/tx ring size is %d\n",
702 dm->num_mbufs, nb_desc);
704 /* init next vhost-user if index */
705 dm->next_vu_if_id = 0;
711 * Tell the vlib physical memory allocator that we've handled
712 * the initialization. We don't actually do so until
713 * vlib_main(...) callls the dpdk config function.
715 int vlib_app_physmem_init (vlib_main_t * vm, physmem_main_t * pm,
716 int physmem_required)
721 static clib_error_t *
722 write_sys_fs (char * file_name, char * fmt, ...)
727 fd = open (file_name, O_WRONLY);
729 return clib_error_return_unix (0, "open `%s'", file_name);
733 s = va_format (0, fmt, &va);
735 vec_add1 (s, 0); // terminate c string
737 if (write (fd, s, vec_len (s)) < 0)
738 return clib_error_return_unix (0, "write '%s' to '%s'", s, file_name);
745 #define VIRTIO_PCI_NAME "virtio-pci"
747 static clib_error_t * dpdk_bind_eth_kernel_drivers (vlib_main_t * vm,
749 char * kernel_driver)
751 dpdk_main_t * dm = &dpdk_main;
752 unformat_input_t _in;
753 unformat_input_t * in = &_in;
754 clib_error_t * error = 0;
755 u8 * line = 0, * modcmd = 0, * path = 0;
756 u8 * pci_vid = 0, *pci_did = 0, * devname = 0;
757 char *driver_name = kernel_driver;
761 * Bail out now if we're not running as root.
762 * This allows non-privileged use of the packet generator, etc.
768 * Get all ethernet pci device numbers for the device type specified.
770 modcmd = format (0, "lspci -nDd %s | grep 0200 | "
771 "awk '{ print $1, $3 }'%c", pci_dev_id, 0);
772 if ((fp = popen ((const char *)modcmd, "r")) == NULL)
774 error = clib_error_return_unix (0,
775 "Unable to get %s ethernet pci devices.",
780 vec_validate (line, BUFSIZ);
781 vec_validate (path, BUFSIZ);
782 while (fgets ((char *)line, BUFSIZ, fp) != NULL)
786 line[strlen ((char *)line) - 1] = 0; // chomp trailing newline.
788 unformat_init_string (in, (char *)line, strlen((char *)line) + 1);
789 unformat(in, "%s %s:%s", &devname, &pci_vid, &pci_did);
793 * Blacklist all ethernet interfaces in the
794 * linux IP routing tables (route --inet --inet6)
796 if (strstr ((char *)dm->eth_if_blacklist, (char *)devname))
800 * If there are any devices whitelisted, then blacklist all devices
801 * which are not explicitly whitelisted.
803 if (dm->eth_if_whitelist &&
804 !strstr ((char *)dm->eth_if_whitelist, (char *)devname))
809 * Optimistically open the device as a netmap device.
811 if (eth_nm_open((char *)devname))
816 path = format (path, "/sys/bus/pci/devices/%s/driver/unbind%c",
820 * If the device is bound to a driver...
822 if (stat ((const char *)path, &st) == 0)
827 * If the interface is not a virtio...
829 if (!driver_name || strcmp(driver_name, VIRTIO_PCI_NAME))
832 * If it is already bound to driver, don't unbind/bind it.
834 device_path = format (0, "/sys/bus/pci/drivers/%s/%s/device%c",
835 driver_name, devname, 0);
836 if (stat ((const char *)device_path, &st) == 0)
839 vec_free (device_path);
843 * unbind it from the current driver
847 _vec_len (path) -= 1;
848 path = format (path, "%c", 0);
849 error = write_sys_fs ((char *)path, "%s", devname);
856 * DAW-FIXME: The following bind/unbind dance is necessary for the dpdk
857 * virtio poll-mode driver to work.
860 if (driver_name && !strcmp(driver_name, VIRTIO_PCI_NAME))
863 * bind interface to the native kernel module
866 path = format (path, "/sys/bus/pci/drivers/%s/bind%c",
868 error = write_sys_fs ((char *)path, "%s", devname);
873 * unbind interface from the native kernel module
875 _vec_len (path) -= 5;
876 path = format (path, "unbind%c", 0);
877 error = write_sys_fs ((char *)path, "%s", devname);
883 * bind the interface to igb_uio
888 path = format (path, "/sys/bus/pci/drivers/%s/new_id%c", driver_name, 0);
889 error = write_sys_fs ((char *) path, "%s %s", pci_vid, pci_did);
894 path = format (path, "/sys/bus/pci/drivers/%s/bind%c", driver_name, 0);
895 error = write_sys_fs ((char *) path, "%s", devname);
916 unformat_socket_mem (unformat_input_t * input, va_list * va)
918 uword ** r = va_arg (* va, uword **);
922 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
924 if (unformat (input, ","))
925 hash_set (*r, i, 1024);
926 else if (unformat (input, "%u,", &mem))
927 hash_set (*r, i, mem);
928 else if (unformat (input, "%u", &mem))
929 hash_set (*r, i, mem);
932 unformat_put_input (input);
943 get_node_free_hugepages_num (u32 node, u32 page_size)
948 tmp = format (0, "/sys/devices/system/node/node%u/hugepages/hugepages-%ukB/"
949 "free_hugepages%c", node, page_size, 0);
950 fp = fopen ((char *) tmp, "r");
958 vec_validate (buffer, 256-1);
959 if (fgets ((char *)buffer, 256, fp))
962 unformat_init_string (&in, (char *) buffer, strlen ((char *) buffer));
963 unformat(&in, "%u", &pages_avail);
974 static clib_error_t *
975 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
977 clib_error_t * error = 0;
978 dpdk_main_t * dm = &dpdk_main;
979 vlib_thread_main_t * tm = vlib_get_thread_main();
982 u8 * rte_cmd = 0, * ethname = 0;
988 int rxrings, txrings, rxslots, txslots, txburst;
991 unformat_input_t _in;
992 unformat_input_t * in = &_in;
999 // MATT-FIXME: inverted virtio-vhost logic to use virtio by default
1000 dm->use_virtio_vhost = 1;
1002 while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
1004 /* Prime the pump */
1005 if (unformat (input, "no-hugetlb"))
1007 vec_add1 (dm->eal_init_args, (u8 *) "no-huge");
1011 else if (unformat (input, "enable-tcp-udp-checksum"))
1013 dm->buffer_flags_template &=
1014 ~(IP_BUFFER_L4_CHECKSUM_CORRECT | IP_BUFFER_L4_CHECKSUM_COMPUTED);
1017 else if (unformat (input, "decimal-interface-names"))
1018 dm->interface_name_format_decimal = 1;
1020 else if (unformat (input, "no-multi-seg"))
1021 dm->no_multi_seg = 1;
1023 else if (unformat (input, "dev %s", &pci_dev_id))
1025 if (dm->eth_if_whitelist)
1028 * Don't add duplicate device id's.
1030 if (strstr ((char *)dm->eth_if_whitelist, (char *)pci_dev_id))
1033 _vec_len (dm->eth_if_whitelist) -= 1; // chomp trailing NULL.
1034 dm->eth_if_whitelist = format (dm->eth_if_whitelist, " %s%c",
1038 dm->eth_if_whitelist = format (0, "%s%c", pci_dev_id, 0);
1042 else if (unformat(input, "netmap %s/%d:%d/%d:%d/%d",
1043 &nmname, &rxrings, &rxslots, &txrings, &txslots, &txburst)) {
1046 eth_nm_args(nmname, rxrings, rxslots, txrings, txslots, txburst);
1048 error = clib_error_return (0, "%s", rv);
1051 }else if (unformat(input, "netmap %s", &nmname)) {
1054 eth_nm_args(nmname, 0, 0, 0, 0, 0);
1056 error = clib_error_return (0, "%s", rv);
1062 else if (unformat (input, "num-mbufs %d", &dm->num_mbufs))
1064 else if (unformat (input, "max-tx-queues %d", &dm->max_tx_queues))
1066 else if (unformat (input, "kni %d", &dm->num_kni))
1068 else if (unformat (input, "uio-driver %s", &dm->uio_driver_name))
1070 else if (unformat (input, "vhost-user-coalesce-frames %d", &dm->vhost_coalesce_frames))
1072 else if (unformat (input, "vhost-user-coalesce-time %f", &dm->vhost_coalesce_time))
1074 else if (unformat (input, "enable-vhost-user"))
1075 dm->use_virtio_vhost = 0;
1076 else if (unformat (input, "rss %d", &dm->use_rss))
1080 else if (unformat(input, #a)) \
1082 if (!strncmp(#a, "no-pci", 6)) \
1084 tmp = format (0, "--%s%c", #a, 0); \
1085 vec_add1 (dm->eal_init_args, tmp); \
1087 foreach_eal_double_hyphen_predicate_arg
1091 else if (unformat(input, #a " %s", &s)) \
1093 if (!strncmp(#a, "huge-dir", 8)) \
1095 else if (!strncmp(#a, "file-prefix", 11)) \
1097 else if (!strncmp(#a, "socket-mem", 10)) \
1098 socket_mem = vec_dup (s); \
1099 tmp = format (0, "--%s%c", #a, 0); \
1100 vec_add1 (dm->eal_init_args, tmp); \
1102 vec_add1 (dm->eal_init_args, s); \
1104 foreach_eal_double_hyphen_arg
1108 else if (unformat(input, #a " %s", &s)) \
1110 tmp = format (0, "-%s%c", #b, 0); \
1111 vec_add1 (dm->eal_init_args, tmp); \
1113 vec_add1 (dm->eal_init_args, s); \
1115 foreach_eal_single_hyphen_arg
1119 else if (unformat(input, #a " %s", &s)) \
1121 tmp = format (0, "-%s%c", #b, 0); \
1122 vec_add1 (dm->eal_init_args, tmp); \
1124 vec_add1 (dm->eal_init_args, s); \
1125 dm->a##_set_manually = 1; \
1127 foreach_eal_single_hyphen_mandatory_arg
1130 else if (unformat(input, "default"))
1135 error = clib_error_return (0, "unknown input `%U'",
1136 format_unformat_error, input);
1141 if (!dm->uio_driver_name)
1142 dm->uio_driver_name = format (0, "igb_uio");
1145 * Use 1G huge pages if available.
1147 if (!no_huge && !huge_dir)
1149 uword * mem_by_socket = hash_create (0, sizeof (uword));
1155 umount(DEFAULT_HUGE_DIR);
1157 /* Process "socket-mem" parameter value */
1158 if (vec_len (socket_mem))
1160 unformat_input_t in;
1161 unformat_init_vector(&in, socket_mem);
1162 unformat(&in, "%U", unformat_socket_mem, &mem_by_socket);
1168 /* check if available enough 1GB pages for each socket */
1169 clib_bitmap_foreach (c, tm->cpu_socket_bitmap, ({
1170 uword * p = hash_get (mem_by_socket, c);
1176 u32 pages_num_1g = mem / 1024;
1177 u32 pages_num_2m = mem / 2;
1180 pages_avail = get_node_free_hugepages_num(c, 1048576);
1181 if (!(pages_avail >= pages_num_1g))
1184 pages_avail = get_node_free_hugepages_num(c, 2048);
1185 if (!(pages_avail >= pages_num_2m))
1191 hash_free (mem_by_socket);
1193 rv = mkdir(VPP_RUN_DIR, 0755);
1194 if (rv && errno != EEXIST)
1196 error = clib_error_return (0, "mkdir '%s' failed errno %d",
1197 VPP_RUN_DIR, errno);
1201 rv = mkdir(DEFAULT_HUGE_DIR, 0755);
1202 if (rv && errno != EEXIST)
1204 error = clib_error_return (0, "mkdir '%s' failed errno %d",
1205 DEFAULT_HUGE_DIR, errno);
1211 rv = mount("none", DEFAULT_HUGE_DIR, "hugetlbfs", 0, "pagesize=1G");
1215 rv = mount("none", DEFAULT_HUGE_DIR, "hugetlbfs", 0, NULL);
1219 return clib_error_return (0, "not enough free huge pages");
1224 error = clib_error_return (0, "mount failed %d", errno);
1228 tmp = format (0, "--huge-dir%c", 0);
1229 vec_add1 (dm->eal_init_args, tmp);
1230 tmp = format (0, "%s%c", DEFAULT_HUGE_DIR, 0);
1231 vec_add1 (dm->eal_init_args, tmp);
1234 tmp = format (0, "--file-prefix%c", 0);
1235 vec_add1 (dm->eal_init_args, tmp);
1236 tmp = format (0, "vpp%c", 0);
1237 vec_add1 (dm->eal_init_args, tmp);
1242 * Blacklist all ethernet interfaces in the linux IP routing tables.
1244 dm->eth_if_blacklist = format (0, "%c", 0);
1245 rte_cmd = format (0, "route --inet --inet6 -n|awk '{print $7}'|sort -u|"
1246 "egrep $(echo $(ls -1d /sys/class/net/*/device|"
1247 "cut -d/ -f5)|sed -s 's/ /|/g')%c", 0);
1248 if ((rte_fp = popen ((const char *)rte_cmd, "r")) == NULL)
1250 error = clib_error_return_unix (0, "Unable to find blacklist ethernet"
1251 " interface(s) in linux routing tables.");
1256 vec_validate (ethname, BUFSIZ);
1257 while (fgets ((char *)ethname, BUFSIZ, rte_fp) != NULL)
1260 u8 * rlnk_cmd = 0, * devname = 0;
1262 ethname[strlen ((char *)ethname) - 1] = 0; // chomp trailing newline.
1264 rlnk_cmd = format (0, "readlink /sys/class/net/%s%c",
1267 if ((rlnk_fp = popen ((const char *)rlnk_cmd, "r")) == NULL)
1269 error = clib_error_return_unix (0, "Unable to read %s link.",
1274 vec_validate (devname, BUFSIZ);
1275 while (fgets ((char *)devname, BUFSIZ, rlnk_fp) != NULL)
1280 * Extract the device PCI ID name from the link. It is the first
1281 * PCI ID searching backwards from the end of the link pathname.
1283 * readlink /sys/class/net/eth0
1284 * ../../devices/pci0000:00/0000:00:0a.0/virtio4/net/eth0
1286 for (pci_id = (char *)((devname + strlen((char *)devname)));
1287 ((u8 *)pci_id > devname) && *pci_id != '.'; pci_id--)
1291 * Verify that the field found is a valid PCI ID.
1293 if ((*(pci_id - 1) == '.') || ((u8 *)(pci_id - 11) < devname) ||
1294 (*(pci_id - 11) != '/') || (*(pci_id - 3) != ':') ||
1295 (*(pci_id - 6) != ':'))
1297 devname[strlen ((char *)devname) - 1] = 0; // chomp trailing newline.
1298 clib_warning ("Unable to extract %s PCI ID (0x%llx \"%s\") "
1299 "from 0x%llx \"%s\"", ethname, pci_id, pci_id,
1307 /* Don't blacklist any interfaces which have been whitelisted.
1309 if (dm->eth_if_whitelist &&
1310 strstr ((char *)dm->eth_if_whitelist, (char *)pci_id))
1313 _vec_len (dm->eth_if_blacklist) -= 1; // chomp trailing NULL.
1314 dm->eth_if_blacklist = format (dm->eth_if_blacklist, " %s%c",
1320 vec_free (rlnk_cmd);
1332 /* I'll bet that -c and -n must be the first and second args... */
1333 if (!dm->coremask_set_manually)
1335 vlib_thread_registration_t * tr;
1336 uword * coremask = 0;
1339 /* main thread core */
1340 coremask = clib_bitmap_set(coremask, tm->main_lcore, 1);
1342 for (i = 0; i < vec_len (tm->registrations); i++)
1344 tr = tm->registrations[i];
1345 coremask = clib_bitmap_or(coremask, tr->coremask);
1348 vec_insert (dm->eal_init_args, 2, 1);
1349 dm->eal_init_args[1] = (u8 *) "-c";
1350 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1351 dm->eal_init_args[2] = tmp;
1352 clib_bitmap_free(coremask);
1355 if (!dm->nchannels_set_manually)
1357 vec_insert (dm->eal_init_args, 2, 3);
1358 dm->eal_init_args[3] = (u8 *) "-n";
1359 tmp = format (0, "%d", dm->nchannels);
1360 dm->eal_init_args[4] = tmp;
1364 * If there are whitelisted devices,
1365 * add the whitelist option & device list to the dpdk arg list...
1367 if (dm->eth_if_whitelist)
1369 unformat_init_string (in, (char *)dm->eth_if_whitelist,
1370 vec_len(dm->eth_if_whitelist) - 1);
1375 * Otherwise add the blacklisted devices to the dpdk arg list.
1379 unformat_init_string (in, (char *)dm->eth_if_blacklist,
1380 vec_len(dm->eth_if_blacklist) - 1);
1384 while (unformat_check_input (in) != UNFORMAT_END_OF_INPUT)
1386 tmp = format (0, fmt, 0);
1387 vec_add1 (dm->eal_init_args, tmp);
1388 unformat (in, "%s", &pci_dev_id);
1389 vec_add1 (dm->eal_init_args, pci_dev_id);
1395 * Bind Virtio pci devices to the igb_uio kernel driver.
1397 error = dpdk_bind_eth_kernel_drivers (vm, "1af4:1000", VIRTIO_PCI_NAME);
1402 * Bind vmxnet3 pci devices to the igb_uio kernel driver.
1404 error = dpdk_bind_eth_kernel_drivers (vm, "15ad:07b0",
1405 (char *) dm->uio_driver_name);
1410 * Bind Intel ethernet pci devices to igb_uio kernel driver.
1412 error = dpdk_bind_eth_kernel_drivers (vm, "8086:",
1413 (char *) dm->uio_driver_name);
1415 * Bind Cisco VIC ethernet pci devices to igb_uio kernel driver.
1417 error = dpdk_bind_eth_kernel_drivers (vm, "1137:0043",
1418 (char *) dm->uio_driver_name);
1421 /* set master-lcore */
1422 tmp = format (0, "--master-lcore%c", 0);
1423 vec_add1 (dm->eal_init_args, tmp);
1424 tmp = format (0, "%u%c", tm->main_lcore, 0);
1425 vec_add1 (dm->eal_init_args, tmp);
1427 /* NULL terminate the "argv" vector, in case of stupidity */
1428 vec_add1 (dm->eal_init_args, 0);
1429 _vec_len(dm->eal_init_args) -= 1;
1431 /* Set up DPDK eal and packet mbuf pool early. */
1433 log_level = (CLIB_DEBUG > 0) ? RTE_LOG_DEBUG : RTE_LOG_NOTICE;
1435 rte_set_log_level (log_level);
1439 /* make copy of args as rte_eal_init tends to mess up with arg array */
1440 for (i = 1; i < vec_len(dm->eal_init_args); i++)
1441 dm->eal_init_args_str = format(dm->eal_init_args_str, "%s ",
1442 dm->eal_init_args[i]);
1444 ret = rte_eal_init(vec_len(dm->eal_init_args), (char **) dm->eal_init_args);
1446 /* lazy umount hugepages */
1447 umount2(DEFAULT_HUGE_DIR, MNT_DETACH);
1450 return clib_error_return (0, "rte_eal_init returned %d", ret);
1452 /* main thread 1st */
1453 error = vlib_buffer_pool_create(vm, dm->num_mbufs, MBUF_SIZE, rte_socket_id());
1457 for (i = 0; i < RTE_MAX_LCORE; i++)
1459 error = vlib_buffer_pool_create(vm, dm->num_mbufs, MBUF_SIZE,
1460 rte_lcore_to_socket_id(i));
1467 vlib_node_runtime_t * rt = vlib_node_get_runtime (vm, dpdk_input_node.index);
1468 rt->function = dpdk_input_rss;
1474 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1476 void dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1478 vnet_main_t * vnm = vnet_get_main();
1479 struct rte_eth_link prev_link = xd->link;
1481 u8 hw_flags_chg = 0;
1483 /* only update link state for PMD interfaces */
1484 if (xd->dev_type != VNET_DPDK_DEV_ETH)
1487 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1488 memset(&xd->link, 0, sizeof(xd->link));
1489 rte_eth_link_get_nowait (xd->device_index, &xd->link);
1491 if (LINK_STATE_ELOGS)
1493 vlib_main_t * vm = vlib_get_main();
1494 ELOG_TYPE_DECLARE(e) = {
1496 "update-link-state: sw_if_index %d, admin_up %d,"
1497 "old link_state %d new link_state %d",
1498 .format_args = "i4i1i1i1",
1501 struct { u32 sw_if_index; u8 admin_up;
1502 u8 old_link_state; u8 new_link_state;} *ed;
1503 ed = ELOG_DATA (&vm->elog_main, e);
1504 ed->sw_if_index = xd->vlib_sw_if_index;
1505 ed->admin_up = xd->admin_up;
1506 ed->old_link_state = (u8)
1507 vnet_hw_interface_is_link_up (vnm, xd->vlib_hw_if_index);
1508 ed->new_link_state = (u8) xd->link.link_status;
1511 if ((xd->admin_up == 1) &&
1512 ((xd->link.link_status != 0) ^
1513 vnet_hw_interface_is_link_up (vnm, xd->vlib_hw_if_index)))
1516 hw_flags |= (xd->link.link_status ?
1517 VNET_HW_INTERFACE_FLAG_LINK_UP: 0);
1520 if (hw_flags_chg || (xd->link.link_duplex != prev_link.link_duplex))
1523 switch (xd->link.link_duplex)
1525 case ETH_LINK_HALF_DUPLEX:
1526 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1528 case ETH_LINK_FULL_DUPLEX:
1529 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1535 if (hw_flags_chg || (xd->link.link_speed != prev_link.link_speed))
1538 switch (xd->link.link_speed)
1540 case ETH_LINK_SPEED_10:
1541 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10M;
1543 case ETH_LINK_SPEED_100:
1544 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_100M;
1546 case ETH_LINK_SPEED_1000:
1547 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_1G;
1549 case ETH_LINK_SPEED_10000:
1550 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10G;
1552 case ETH_LINK_SPEED_40G:
1553 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_40G;
1558 clib_warning("unknown link speed %d", xd->link.link_speed);
1564 if (LINK_STATE_ELOGS)
1566 vlib_main_t * vm = vlib_get_main();
1568 ELOG_TYPE_DECLARE(e) = {
1569 .format = "update-link-state: sw_if_index %d, new flags %d",
1570 .format_args = "i4i4",
1573 struct { u32 sw_if_index; u32 flags; } *ed;
1574 ed = ELOG_DATA (&vm->elog_main, e);
1575 ed->sw_if_index = xd->vlib_sw_if_index;
1576 ed->flags = hw_flags;
1578 vnet_hw_interface_set_flags (vnm, xd->vlib_hw_if_index, hw_flags);
1583 dpdk_process (vlib_main_t * vm,
1584 vlib_node_runtime_t * rt,
1587 clib_error_t * error;
1588 dpdk_main_t * dm = &dpdk_main;
1590 vlib_thread_main_t * tm = vlib_get_thread_main();
1594 error = dpdk_lib_init (dm);
1597 * Turn on the input node if we found some devices to drive
1598 * and we're not running worker threads or i/o threads
1601 if (error == 0 && vec_len(dm->devices) > 0)
1603 if (tm->n_vlib_mains == 1)
1604 vlib_node_set_state (vm, dpdk_input_node.index,
1605 VLIB_NODE_STATE_POLLING);
1606 else if (tm->main_thread_is_io_node)
1607 vlib_node_set_state (vm, dpdk_io_input_node.index,
1608 VLIB_NODE_STATE_POLLING);
1609 else if (!dm->have_io_threads)
1610 for (i=0; i < tm->n_vlib_mains; i++)
1611 if (vec_len(dm->devices_by_cpu[i]) > 0)
1612 vlib_node_set_state (vlib_mains[i], dpdk_input_node.index,
1613 VLIB_NODE_STATE_POLLING);
1617 clib_error_report (error);
1619 dpdk_vhost_user_process_init(&vu_state);
1621 dm->io_thread_release = 1;
1623 f64 now = vlib_time_now (vm);
1624 vec_foreach (xd, dm->devices)
1626 dpdk_update_link_state (xd, now);
1631 vlib_process_wait_for_event_or_clock (vm, 5.0);
1633 if (dpdk_get_admin_up_down_in_progress())
1634 /* skip the poll if an admin up down is in progress (on any interface) */
1637 vec_foreach (xd, dm->devices)
1639 f64 now = vlib_time_now (vm);
1640 if ((now - xd->time_last_stats_update) >= DPDK_STATS_POLL_INTERVAL)
1641 dpdk_update_counters (xd, now);
1642 if ((now - xd->time_last_link_update) >= DPDK_LINK_POLL_INTERVAL)
1643 dpdk_update_link_state (xd, now);
1645 if (xd->dev_type == VNET_DPDK_DEV_VHOST_USER)
1646 if (dpdk_vhost_user_process_if(vm, xd, vu_state) != 0)
1651 dpdk_vhost_user_process_cleanup(vu_state);
1656 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1657 .function = dpdk_process,
1658 .type = VLIB_NODE_TYPE_PROCESS,
1659 .name = "dpdk-process",
1660 .process_log2_n_stack_bytes = 17,
1664 dpdk_init (vlib_main_t * vm)
1666 dpdk_main_t * dm = &dpdk_main;
1668 clib_error_t * error = 0;
1669 vlib_thread_main_t * tm = vlib_get_thread_main();
1671 /* verify that structs are cacheline aligned */
1672 ASSERT(offsetof(dpdk_device_t, cacheline0) == 0);
1673 ASSERT(offsetof(dpdk_device_t, cacheline1) == CLIB_CACHE_LINE_BYTES);
1674 ASSERT(offsetof(dpdk_worker_t, cacheline0) == 0);
1675 ASSERT(offsetof(frame_queue_trace_t, cacheline0) == 0);
1677 /* Add references to DPDK Driver Constructor functions to get the dynamic
1678 * loader to pull in the driver library & run the constructors.
1682 void devinitfn_ ##d(void); \
1683 __attribute__((unused)) void (* volatile pf)(void); \
1684 pf = devinitfn_ ##d; \
1687 #ifdef RTE_LIBRTE_EM_PMD
1691 #ifdef RTE_LIBRTE_IGB_PMD
1695 #ifdef RTE_LIBRTE_IXGBE_PMD
1699 #ifdef RTE_LIBRTE_I40E_PMD
1701 _(rte_i40evf_driver)
1704 #ifdef RTE_LIBRTE_FM10K_PMD
1708 #ifdef RTE_LIBRTE_VIRTIO_PMD
1709 _(rte_virtio_driver)
1712 #ifdef RTE_LIBRTE_VMXNET3_PMD
1713 _(rte_vmxnet3_driver)
1716 #ifdef RTE_LIBRTE_VICE_PMD
1720 #ifdef RTE_LIBRTE_ENIC_PMD
1724 #ifdef RTE_LIBRTE_PMD_AF_PACKET
1725 _(pmd_af_packet_drv)
1728 #ifdef RTE_LIBRTE_CXGBE_PMD
1735 * At the moment, the ThunderX NIC driver doesn't have
1736 * an entry point named "devinitfn_rte_xxx_driver"
1741 __attribute__((unused)) void (* volatile pf)(void); \
1745 #ifdef RTE_LIBRTE_THUNDERVNIC_PMD
1746 _(rte_nicvf_pmd_init)
1751 dm->vnet_main = vnet_get_main();
1753 ei = vlib_get_node_by_name (vm, (u8 *) "ethernet-input");
1755 return clib_error_return (0, "ethernet-input node AWOL");
1757 dm->ethernet_input_node_index = ei->index;
1760 dm->num_mbufs = dm->num_mbufs ? dm->num_mbufs : NB_MBUF;
1761 vec_add1 (dm->eal_init_args, (u8 *) "vnet");
1763 dm->dpdk_device_by_kni_port_id = hash_create (0, sizeof (uword));
1764 dm->vu_sw_if_index_by_listener_fd = hash_create (0, sizeof (uword));
1765 dm->vu_sw_if_index_by_sock_fd = hash_create (0, sizeof (uword));
1767 /* $$$ use n_thread_stacks since it's known-good at this point */
1768 vec_validate (dm->recycle, tm->n_thread_stacks - 1);
1770 /* initialize EFD (early fast discard) default settings */
1771 dm->efd.enabled = DPDK_EFD_DISABLED;
1772 dm->efd.queue_hi_thresh = ((DPDK_EFD_DEFAULT_DEVICE_QUEUE_HI_THRESH_PCT *
1773 DPDK_NB_RX_DESC_10GE)/100);
1774 dm->efd.consec_full_frames_hi_thresh =
1775 DPDK_EFD_DEFAULT_CONSEC_FULL_FRAMES_HI_THRESH;
1777 /* vhost-user coalescence frames defaults */
1778 dm->vhost_coalesce_frames = 32;
1779 dm->vhost_coalesce_time = 1e-3;
1781 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1782 dm->buffer_flags_template =
1783 (VLIB_BUFFER_TOTAL_LENGTH_VALID
1784 | IP_BUFFER_L4_CHECKSUM_COMPUTED
1785 | IP_BUFFER_L4_CHECKSUM_CORRECT);
1788 if ((error = vlib_call_init_function (vm, dpdk_cli_init)))
1794 VLIB_INIT_FUNCTION (dpdk_init);