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!");
161 xd->port_conf.rxmode.max_rx_pkt_len = hi->max_packet_bytes;
164 rte_eth_dev_stop (xd->device_index);
166 rv = rte_eth_dev_configure
173 vlib_cli_output (vlib_get_main(),
174 "rte_eth_dev_configure[%d]: err %d",
175 xd->device_index, rv);
177 rte_eth_dev_set_mtu(xd->device_index, hi->max_packet_bytes);
180 rte_eth_dev_start (xd->device_index);
187 extern int rte_netmap_probe(void);
191 dpdk_device_lock_init(dpdk_device_t * xd)
194 vec_validate(xd->lockp, xd->tx_q_used - 1);
195 for (q = 0; q < xd->tx_q_used; q++)
197 xd->lockp[q] = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
198 CLIB_CACHE_LINE_BYTES);
199 memset ((void *) xd->lockp[q], 0, CLIB_CACHE_LINE_BYTES);
205 dpdk_device_lock_free(dpdk_device_t * xd)
209 for (q = 0; q < vec_len(xd->lockp); q++)
210 clib_mem_free((void *) xd->lockp[q]);
216 static clib_error_t *
217 dpdk_lib_init (dpdk_main_t * dm)
222 clib_error_t * error;
223 vlib_main_t * vm = vlib_get_main();
224 vlib_thread_main_t * tm = vlib_get_thread_main();
225 vnet_sw_interface_t * sw;
226 vnet_hw_interface_t * hi;
228 vlib_thread_registration_t * tr;
232 u8 af_packet_port_id = 0;
234 dm->input_cpu_first_index = 0;
235 dm->input_cpu_count = 1;
237 /* find out which cpus will be used for input */
238 p = hash_get_mem (tm->thread_registrations_by_name, "io");
239 tr = p ? (vlib_thread_registration_t *) p[0] : 0;
241 if (!tr || tr->count == 0)
243 /* no io threads, workers doing input */
244 p = hash_get_mem (tm->thread_registrations_by_name, "workers");
245 tr = p ? (vlib_thread_registration_t *) p[0] : 0;
249 dm->have_io_threads = 1;
252 if (tr && tr->count > 0)
254 dm->input_cpu_first_index = tr->first_index;
255 dm->input_cpu_count = tr->count;
258 vec_validate_aligned (dm->devices_by_cpu, tm->n_vlib_mains - 1,
259 CLIB_CACHE_LINE_BYTES);
261 vec_validate_aligned (dm->workers, tm->n_vlib_mains - 1,
262 CLIB_CACHE_LINE_BYTES);
265 if(rte_netmap_probe() < 0)
266 return clib_error_return (0, "rte netmap probe failed");
269 nports = rte_eth_dev_count();
272 clib_warning ("DPDK drivers found no ports...");
276 clib_warning ("DPDK drivers found %d ports...", nports);
279 * All buffers are all allocated from the same rte_mempool.
280 * Thus they all have the same number of data bytes.
282 dm->vlib_buffer_free_list_index =
283 vlib_buffer_get_or_create_free_list (
284 vm, VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES, "dpdk rx");
286 for (i = 0; i < nports; i++)
290 struct rte_eth_dev_info dev_info;
292 struct rte_eth_link l;
294 /* Create vnet interface */
295 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
296 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
297 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
298 xd->cpu_socket = (i8) rte_eth_dev_socket_id(i);
299 rte_eth_dev_info_get(i, &dev_info);
301 memcpy(&xd->tx_conf, &dev_info.default_txconf,
302 sizeof(struct rte_eth_txconf));
303 if (dm->no_multi_seg)
305 xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
306 port_conf_template.rxmode.jumbo_frame = 0;
310 xd->tx_conf.txq_flags &= ~ETH_TXQ_FLAGS_NOMULTSEGS;
311 port_conf_template.rxmode.jumbo_frame = 1;
314 memcpy(&xd->port_conf, &port_conf_template, sizeof(struct rte_eth_conf));
316 xd->tx_q_used = clib_min(dev_info.max_tx_queues, tm->n_vlib_mains);
318 if (dm->max_tx_queues)
319 xd->tx_q_used = clib_min(xd->tx_q_used, dm->max_tx_queues);
321 if (dm->use_rss > 1 && dev_info.max_rx_queues >= dm->use_rss)
323 xd->rx_q_used = dm->use_rss;
324 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
325 xd->port_conf.rx_adv_conf.rss_conf.rss_hf = ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
330 xd->dev_type = VNET_DPDK_DEV_ETH;
332 /* workaround for drivers not setting driver_name */
333 if (!dev_info.driver_name)
334 dev_info.driver_name = dev_info.pci_dev->driver->name;
335 ASSERT(dev_info.driver_name);
340 #define _(s,f) else if (!strcmp(dev_info.driver_name, s)) \
341 xd->pmd = VNET_DPDK_PMD_##f;
347 xd->pmd = VNET_DPDK_PMD_UNKNOWN;
352 case VNET_DPDK_PMD_E1000EM:
353 case VNET_DPDK_PMD_IGB:
354 case VNET_DPDK_PMD_IGBVF:
355 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
359 case VNET_DPDK_PMD_IXGBE:
360 case VNET_DPDK_PMD_IXGBEVF:
361 case VNET_DPDK_PMD_THUNDERX:
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 case VNET_DPDK_PMD_VICE:
369 case VNET_DPDK_PMD_ENIC:
370 rte_eth_link_get_nowait(i, &l);
371 if (l.link_speed == 40000)
373 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
374 xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE;
375 xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
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 /* Intel Fortville */
386 case VNET_DPDK_PMD_I40E:
387 case VNET_DPDK_PMD_I40EVF:
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;
392 switch (dev_info.pci_dev->id.device_id) {
393 case I40E_DEV_ID_10G_BASE_T:
394 case I40E_DEV_ID_SFP_XL710:
395 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
397 case I40E_DEV_ID_QSFP_A:
398 case I40E_DEV_ID_QSFP_B:
399 case I40E_DEV_ID_QSFP_C:
400 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
403 rte_eth_link_get_nowait(i, &l);
404 xd->port_type = l.link_speed == 10000 ?
405 VNET_DPDK_PORT_TYPE_ETH_10G : VNET_DPDK_PORT_TYPE_ETH_40G;
408 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
412 case VNET_DPDK_PMD_CXGBE:
413 switch (dev_info.pci_dev->id.device_id) {
414 case 0x5410: /* T580-LP-cr */
415 xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE;
416 xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
417 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
420 xd->nb_rx_desc = DPDK_NB_RX_DESC_10GE;
421 xd->nb_tx_desc = DPDK_NB_TX_DESC_10GE;
422 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
426 /* Intel Red Rock Canyon */
427 case VNET_DPDK_PMD_FM10K:
428 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
429 xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE;
430 xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
434 case VNET_DPDK_PMD_VIRTIO:
435 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
436 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
437 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
441 case VNET_DPDK_PMD_VMXNET3:
442 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
443 xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
446 case VNET_DPDK_PMD_AF_PACKET:
447 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
448 xd->af_packet_port_id = af_packet_port_id++;
451 case VNET_DPDK_PMD_BOND:
452 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_BOND;
456 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
460 if(strncmp(dev_info.driver_name, "vale", 4) == 0
461 || strncmp(dev_info.driver_name, "netmap", 6) == 0)
463 xd->pmd = VNET_DPDK_PMD_NETMAP;
464 xd->port_type = VNET_DPDK_PORT_TYPE_NETMAP;
471 * Ensure default mtu is not > the mtu read from the hardware.
472 * Otherwise rte_eth_dev_configure() will fail and the port will
475 if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
478 * This device does not support the platforms's max frame
479 * size. Use it's advertised mru instead.
481 xd->port_conf.rxmode.max_rx_pkt_len = dev_info.max_rx_pktlen;
485 xd->port_conf.rxmode.max_rx_pkt_len = ETHERNET_MAX_PACKET_BYTES;
488 * Some platforms do not account for Ethernet FCS (4 bytes) in
489 * MTU calculations. To interop with them increase mru but only
490 * if the device's settings can support it.
492 if ((dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)) &&
493 xd->port_conf.rxmode.hw_strip_crc)
496 * Allow additional 4 bytes (for Ethernet FCS). These bytes are
497 * stripped by h/w and so will not consume any buffer memory.
499 xd->port_conf.rxmode.max_rx_pkt_len += 4;
504 * DAW-FIXME: VMXNET3 driver doesn't support jumbo / multi-buffer pkts
506 if (xd->pmd == VNET_DPDK_PMD_VMXNET3)
508 xd->port_conf.rxmode.max_rx_pkt_len = 1518;
509 xd->port_conf.rxmode.jumbo_frame = 0;
512 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
514 f64 now = vlib_time_now(vm);
516 rnd = (u32) (now * 1e6);
517 rnd = random_u32 (&rnd);
518 memcpy (addr+2, &rnd, sizeof(rnd));
523 rte_eth_macaddr_get(i,(struct ether_addr *)addr);
525 if (xd->tx_q_used < tm->n_vlib_mains)
526 dpdk_device_lock_init(xd);
528 xd->device_index = xd - dm->devices;
529 ASSERT(i == xd->device_index);
530 xd->per_interface_next_index = ~0;
532 /* assign interface to input thread */
533 dpdk_device_and_queue_t * dq;
536 for (q = 0; q < xd->rx_q_used; q++)
538 int cpu = dm->input_cpu_first_index + next_cpu;
539 unsigned lcore = vlib_worker_threads[cpu].dpdk_lcore_id;
542 * numa node for worker thread handling this queue
543 * needed for taking buffers from the right mempool
545 vec_validate(xd->cpu_socket_id_by_queue, q);
546 xd->cpu_socket_id_by_queue[q] = rte_lcore_to_socket_id(lcore);
549 * construct vector of (device,queue) pairs for each worker thread
551 vec_add2(dm->devices_by_cpu[cpu], dq, 1);
552 dq->device = xd->device_index;
556 if (next_cpu == dm->input_cpu_count)
560 vec_validate_aligned (xd->tx_vectors, tm->n_vlib_mains,
561 CLIB_CACHE_LINE_BYTES);
562 for (j = 0; j < tm->n_vlib_mains; j++)
564 vec_validate_ha (xd->tx_vectors[j], DPDK_TX_RING_SIZE,
565 sizeof(tx_ring_hdr_t), CLIB_CACHE_LINE_BYTES);
566 vec_reset_length (xd->tx_vectors[j]);
569 vec_validate_aligned (xd->rx_vectors, xd->rx_q_used,
570 CLIB_CACHE_LINE_BYTES);
571 for (j = 0; j< xd->rx_q_used; j++)
573 vec_validate_aligned (xd->rx_vectors[j], VLIB_FRAME_SIZE-1,
574 CLIB_CACHE_LINE_BYTES);
575 vec_reset_length (xd->rx_vectors[j]);
578 vec_validate_aligned (xd->frames, tm->n_vlib_mains,
579 CLIB_CACHE_LINE_BYTES);
581 rv = dpdk_port_setup(dm, xd);
586 /* count the number of descriptors used for this device */
587 nb_desc += xd->nb_rx_desc + xd->nb_tx_desc * xd->tx_q_used;
589 error = ethernet_register_interface
591 dpdk_device_class.index,
593 /* ethernet address */ addr,
594 &xd->vlib_hw_if_index,
599 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->vlib_hw_if_index);
600 xd->vlib_sw_if_index = sw->sw_if_index;
601 hi = vnet_get_hw_interface (dm->vnet_main, xd->vlib_hw_if_index);
604 * DAW-FIXME: The Cisco VIC firmware does not provide an api for a
605 * driver to dynamically change the mtu. If/when the
606 * VIC firmware gets fixed, then this should be removed.
608 if (xd->pmd == VNET_DPDK_PMD_VICE ||
609 xd->pmd == VNET_DPDK_PMD_ENIC)
612 * Initialize mtu to what has been set by CIMC in the firmware cfg.
614 hi->max_packet_bytes = dev_info.max_rx_pktlen;
616 * remove vlan tag from VIC port to fix VLAN0 issue.
617 * TODO Handle VLAN tagged traffic
620 vlan_off = rte_eth_dev_get_vlan_offload(xd->device_index);
621 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
622 rte_eth_dev_set_vlan_offload(xd->device_index, vlan_off);
625 * DAW-FIXME: VMXNET3 driver doesn't support jumbo / multi-buffer pkts
627 else if (xd->pmd == VNET_DPDK_PMD_VMXNET3)
628 hi->max_packet_bytes = 1518;
630 hi->max_l3_packet_bytes[VLIB_RX] = hi->max_l3_packet_bytes[VLIB_TX] =
631 xd->port_conf.rxmode.max_rx_pkt_len - sizeof(ethernet_header_t);
633 rte_eth_dev_set_mtu(xd->device_index, hi->max_packet_bytes);
636 #ifdef RTE_LIBRTE_KNI
638 clib_warning("Initializing KNI interfaces...");
639 rte_kni_init(dm->num_kni);
640 for (i = 0; i < dm->num_kni; i++)
645 /* Create vnet interface */
646 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
647 xd->dev_type = VNET_DPDK_DEV_KNI;
649 xd->device_index = xd - dm->devices;
650 ASSERT(nports + i == xd->device_index);
651 xd->per_interface_next_index = ~0;
654 hash_set (dm->dpdk_device_by_kni_port_id, i, xd - dm->devices);
657 /* assign interface to input thread */
658 dpdk_device_and_queue_t * dq;
659 vec_add2(dm->devices_by_cpu[dm->input_cpu_first_index], dq, 1);
660 dq->device = xd->device_index;
663 vec_validate_aligned (xd->tx_vectors, tm->n_vlib_mains,
664 CLIB_CACHE_LINE_BYTES);
665 for (j = 0; j < tm->n_vlib_mains; j++)
667 vec_validate_ha (xd->tx_vectors[j], DPDK_TX_RING_SIZE,
668 sizeof(tx_ring_hdr_t), CLIB_CACHE_LINE_BYTES);
669 vec_reset_length (xd->tx_vectors[j]);
672 vec_validate_aligned (xd->rx_vectors, xd->rx_q_used,
673 CLIB_CACHE_LINE_BYTES);
674 for (j = 0; j< xd->rx_q_used; j++)
676 vec_validate_aligned (xd->rx_vectors[j], VLIB_FRAME_SIZE-1,
677 CLIB_CACHE_LINE_BYTES);
678 vec_reset_length (xd->rx_vectors[j]);
681 vec_validate_aligned (xd->frames, tm->n_vlib_mains,
682 CLIB_CACHE_LINE_BYTES);
684 /* FIXME Set up one TX-queue per worker thread */
687 f64 now = vlib_time_now(vm);
689 rnd = (u32) (now * 1e6);
690 rnd = random_u32 (&rnd);
692 memcpy (addr+2, &rnd, sizeof(rnd));
697 error = ethernet_register_interface
699 dpdk_device_class.index,
701 /* ethernet address */ addr,
702 &xd->vlib_hw_if_index,
708 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->vlib_hw_if_index);
709 xd->vlib_sw_if_index = sw->sw_if_index;
710 hi = vnet_get_hw_interface (dm->vnet_main, xd->vlib_hw_if_index);
715 if (nb_desc > dm->num_mbufs)
716 clib_warning ("%d mbufs allocated but total rx/tx ring size is %d\n",
717 dm->num_mbufs, nb_desc);
719 /* init next vhost-user if index */
720 dm->next_vu_if_id = 0;
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);
896 path = format (path, "/sys/bus/pci/drivers/%s/bind%c", driver_name, 0);
897 error = write_sys_fs ((char *) path, "%s", devname);
918 get_node_free_hugepages_num (u32 node, u32 page_size)
923 tmp = format (0, "/sys/devices/system/node/node%u/hugepages/hugepages-%ukB/"
924 "free_hugepages%c", node, page_size, 0);
925 fp = fopen ((char *) tmp, "r");
933 vec_validate (buffer, 256-1);
934 if (fgets ((char *)buffer, 256, fp))
937 unformat_init_string (&in, (char *) buffer, strlen ((char *) buffer));
938 unformat(&in, "%u", &pages_avail);
949 static clib_error_t *
950 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
952 clib_error_t * error = 0;
953 dpdk_main_t * dm = &dpdk_main;
954 vlib_thread_main_t * tm = vlib_get_thread_main();
957 u8 * rte_cmd = 0, * ethname = 0;
963 int rxrings, txrings, rxslots, txslots, txburst;
966 unformat_input_t _in;
967 unformat_input_t * in = &_in;
974 // MATT-FIXME: inverted virtio-vhost logic to use virtio by default
975 dm->use_virtio_vhost = 1;
977 while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
980 if (unformat (input, "no-hugetlb"))
982 vec_add1 (dm->eal_init_args, (u8 *) "no-huge");
986 else if (unformat (input, "enable-tcp-udp-checksum"))
988 dm->buffer_flags_template &=
989 ~(IP_BUFFER_L4_CHECKSUM_CORRECT | IP_BUFFER_L4_CHECKSUM_COMPUTED);
992 else if (unformat (input, "decimal-interface-names"))
993 dm->interface_name_format_decimal = 1;
995 else if (unformat (input, "no-multi-seg"))
996 dm->no_multi_seg = 1;
998 else if (unformat (input, "dev %s", &pci_dev_id))
1000 if (dm->eth_if_whitelist)
1003 * Don't add duplicate device id's.
1005 if (strstr ((char *)dm->eth_if_whitelist, (char *)pci_dev_id))
1008 _vec_len (dm->eth_if_whitelist) -= 1; // chomp trailing NULL.
1009 dm->eth_if_whitelist = format (dm->eth_if_whitelist, " %s%c",
1013 dm->eth_if_whitelist = format (0, "%s%c", pci_dev_id, 0);
1017 else if (unformat(input, "netmap %s/%d:%d/%d:%d/%d",
1018 &nmname, &rxrings, &rxslots, &txrings, &txslots, &txburst)) {
1021 eth_nm_args(nmname, rxrings, rxslots, txrings, txslots, txburst);
1023 error = clib_error_return (0, "%s", rv);
1026 }else if (unformat(input, "netmap %s", &nmname)) {
1029 eth_nm_args(nmname, 0, 0, 0, 0, 0);
1031 error = clib_error_return (0, "%s", rv);
1037 else if (unformat (input, "num-mbufs %d", &dm->num_mbufs))
1039 else if (unformat (input, "max-tx-queues %d", &dm->max_tx_queues))
1041 else if (unformat (input, "kni %d", &dm->num_kni))
1043 else if (unformat (input, "uio-driver %s", &dm->uio_driver_name))
1045 else if (unformat (input, "vhost-user-coalesce-frames %d", &dm->vhost_coalesce_frames))
1047 else if (unformat (input, "vhost-user-coalesce-time %f", &dm->vhost_coalesce_time))
1049 else if (unformat (input, "enable-vhost-user"))
1050 dm->use_virtio_vhost = 0;
1051 else if (unformat (input, "rss %d", &dm->use_rss))
1055 else if (unformat(input, #a)) \
1057 if (!strncmp(#a, "no-pci", 6)) \
1059 tmp = format (0, "--%s%c", #a, 0); \
1060 vec_add1 (dm->eal_init_args, tmp); \
1062 foreach_eal_double_hyphen_predicate_arg
1066 else if (unformat(input, #a " %s", &s)) \
1068 if (!strncmp(#a, "huge-dir", 8)) \
1070 else if (!strncmp(#a, "file-prefix", 11)) \
1072 else if (!strncmp(#a, "socket-mem", 10)) \
1073 socket_mem = vec_dup (s); \
1074 tmp = format (0, "--%s%c", #a, 0); \
1075 vec_add1 (dm->eal_init_args, tmp); \
1077 vec_add1 (dm->eal_init_args, s); \
1079 foreach_eal_double_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); \
1090 foreach_eal_single_hyphen_arg
1094 else if (unformat(input, #a " %s", &s)) \
1096 tmp = format (0, "-%s%c", #b, 0); \
1097 vec_add1 (dm->eal_init_args, tmp); \
1099 vec_add1 (dm->eal_init_args, s); \
1100 dm->a##_set_manually = 1; \
1102 foreach_eal_single_hyphen_mandatory_arg
1105 else if (unformat(input, "default"))
1110 error = clib_error_return (0, "unknown input `%U'",
1111 format_unformat_error, input);
1116 if (!dm->uio_driver_name)
1117 dm->uio_driver_name = format (0, "igb_uio");
1120 * Use 1G huge pages if available.
1122 if (!no_huge && !huge_dir)
1124 uword * mem_by_socket = hash_create (0, sizeof (uword));
1130 umount(DEFAULT_HUGE_DIR);
1132 /* Process "socket-mem" parameter value */
1133 if (vec_len (socket_mem))
1135 unformat_input_t in;
1136 unformat_init_vector(&in, socket_mem);
1137 unformat(&in, "%U", unformat_socket_mem, &mem_by_socket);
1143 /* check if available enough 1GB pages for each socket */
1144 clib_bitmap_foreach (c, tm->cpu_socket_bitmap, ({
1145 uword * p = hash_get (mem_by_socket, c);
1151 u32 pages_num_1g = mem / 1024;
1152 u32 pages_num_2m = mem / 2;
1155 pages_avail = get_node_free_hugepages_num(c, 1048576);
1156 if (!pages_avail || !(pages_avail >= pages_num_1g))
1159 pages_avail = get_node_free_hugepages_num(c, 2048);
1160 if (!pages_avail || !(pages_avail >= pages_num_2m))
1166 hash_free (mem_by_socket);
1168 rv = mkdir(VPP_RUN_DIR, 0755);
1169 if (rv && errno != EEXIST)
1171 error = clib_error_return (0, "mkdir '%s' failed errno %d",
1172 VPP_RUN_DIR, errno);
1176 rv = mkdir(DEFAULT_HUGE_DIR, 0755);
1177 if (rv && errno != EEXIST)
1179 error = clib_error_return (0, "mkdir '%s' failed errno %d",
1180 DEFAULT_HUGE_DIR, errno);
1186 rv = mount("none", DEFAULT_HUGE_DIR, "hugetlbfs", 0, "pagesize=1G");
1190 rv = mount("none", DEFAULT_HUGE_DIR, "hugetlbfs", 0, NULL);
1194 return clib_error_return (0, "not enough free huge pages");
1199 error = clib_error_return (0, "mount failed %d", errno);
1203 tmp = format (0, "--huge-dir%c", 0);
1204 vec_add1 (dm->eal_init_args, tmp);
1205 tmp = format (0, "%s%c", DEFAULT_HUGE_DIR, 0);
1206 vec_add1 (dm->eal_init_args, tmp);
1209 tmp = format (0, "--file-prefix%c", 0);
1210 vec_add1 (dm->eal_init_args, tmp);
1211 tmp = format (0, "vpp%c", 0);
1212 vec_add1 (dm->eal_init_args, tmp);
1217 * Blacklist all ethernet interfaces in the linux IP routing tables.
1219 dm->eth_if_blacklist = format (0, "%c", 0);
1220 rte_cmd = format (0, "route --inet --inet6 -n|awk '{print $7}'|sort -u|"
1221 "egrep $(echo $(ls -1d /sys/class/net/*/device|"
1222 "cut -d/ -f5)|sed -s 's/ /|/g')%c", 0);
1223 if ((rte_fp = popen ((const char *)rte_cmd, "r")) == NULL)
1225 error = clib_error_return_unix (0, "Unable to find blacklist ethernet"
1226 " interface(s) in linux routing tables.");
1231 vec_validate (ethname, BUFSIZ);
1232 while (fgets ((char *)ethname, BUFSIZ, rte_fp) != NULL)
1235 u8 * rlnk_cmd = 0, * devname = 0;
1237 ethname[strlen ((char *)ethname) - 1] = 0; // chomp trailing newline.
1239 rlnk_cmd = format (0, "readlink /sys/class/net/%s%c",
1242 if ((rlnk_fp = popen ((const char *)rlnk_cmd, "r")) == NULL)
1244 error = clib_error_return_unix (0, "Unable to read %s link.",
1249 vec_validate (devname, BUFSIZ);
1250 while (fgets ((char *)devname, BUFSIZ, rlnk_fp) != NULL)
1255 * Extract the device PCI ID name from the link. It is the first
1256 * PCI ID searching backwards from the end of the link pathname.
1258 * readlink /sys/class/net/eth0
1259 * ../../devices/pci0000:00/0000:00:0a.0/virtio4/net/eth0
1261 for (pci_id = (char *)((devname + strlen((char *)devname)));
1262 ((u8 *)pci_id > devname) && *pci_id != '.'; pci_id--)
1266 * Verify that the field found is a valid PCI ID.
1268 if ((*(pci_id - 1) == '.') || ((u8 *)(pci_id - 11) < devname) ||
1269 (*(pci_id - 11) != '/') || (*(pci_id - 3) != ':') ||
1270 (*(pci_id - 6) != ':'))
1272 devname[strlen ((char *)devname) - 1] = 0; // chomp trailing newline.
1273 clib_warning ("Unable to extract %s PCI ID (0x%llx \"%s\") "
1274 "from 0x%llx \"%s\"", ethname, pci_id, pci_id,
1282 /* Don't blacklist any interfaces which have been whitelisted.
1284 if (dm->eth_if_whitelist &&
1285 strstr ((char *)dm->eth_if_whitelist, (char *)pci_id))
1288 _vec_len (dm->eth_if_blacklist) -= 1; // chomp trailing NULL.
1289 dm->eth_if_blacklist = format (dm->eth_if_blacklist, " %s%c",
1295 vec_free (rlnk_cmd);
1307 /* I'll bet that -c and -n must be the first and second args... */
1308 if (!dm->coremask_set_manually)
1310 vlib_thread_registration_t * tr;
1311 uword * coremask = 0;
1314 /* main thread core */
1315 coremask = clib_bitmap_set(coremask, tm->main_lcore, 1);
1317 for (i = 0; i < vec_len (tm->registrations); i++)
1319 tr = tm->registrations[i];
1320 coremask = clib_bitmap_or(coremask, tr->coremask);
1323 vec_insert (dm->eal_init_args, 2, 1);
1324 dm->eal_init_args[1] = (u8 *) "-c";
1325 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1326 dm->eal_init_args[2] = tmp;
1327 clib_bitmap_free(coremask);
1330 if (!dm->nchannels_set_manually)
1332 vec_insert (dm->eal_init_args, 2, 3);
1333 dm->eal_init_args[3] = (u8 *) "-n";
1334 tmp = format (0, "%d", dm->nchannels);
1335 dm->eal_init_args[4] = tmp;
1339 * If there are whitelisted devices,
1340 * add the whitelist option & device list to the dpdk arg list...
1342 if (dm->eth_if_whitelist)
1344 unformat_init_string (in, (char *)dm->eth_if_whitelist,
1345 vec_len(dm->eth_if_whitelist) - 1);
1350 * Otherwise add the blacklisted devices to the dpdk arg list.
1354 unformat_init_string (in, (char *)dm->eth_if_blacklist,
1355 vec_len(dm->eth_if_blacklist) - 1);
1359 while (unformat_check_input (in) != UNFORMAT_END_OF_INPUT)
1361 tmp = format (0, fmt, 0);
1362 vec_add1 (dm->eal_init_args, tmp);
1363 unformat (in, "%s", &pci_dev_id);
1364 vec_add1 (dm->eal_init_args, pci_dev_id);
1370 * Bind Virtio pci devices to the igb_uio kernel driver.
1372 error = dpdk_bind_eth_kernel_drivers (vm, "1af4:1000", VIRTIO_PCI_NAME);
1377 * Bind vmxnet3 pci devices to the igb_uio kernel driver.
1379 error = dpdk_bind_eth_kernel_drivers (vm, "15ad:07b0",
1380 (char *) dm->uio_driver_name);
1385 * Bind Intel ethernet pci devices to igb_uio kernel driver.
1387 error = dpdk_bind_eth_kernel_drivers (vm, "8086:",
1388 (char *) dm->uio_driver_name);
1390 * Bind Cisco VIC ethernet pci devices to igb_uio kernel driver.
1392 error = dpdk_bind_eth_kernel_drivers (vm, "1137:0043",
1393 (char *) dm->uio_driver_name);
1396 /* set master-lcore */
1397 tmp = format (0, "--master-lcore%c", 0);
1398 vec_add1 (dm->eal_init_args, tmp);
1399 tmp = format (0, "%u%c", tm->main_lcore, 0);
1400 vec_add1 (dm->eal_init_args, tmp);
1402 /* NULL terminate the "argv" vector, in case of stupidity */
1403 vec_add1 (dm->eal_init_args, 0);
1404 _vec_len(dm->eal_init_args) -= 1;
1406 /* Set up DPDK eal and packet mbuf pool early. */
1408 log_level = (CLIB_DEBUG > 0) ? RTE_LOG_DEBUG : RTE_LOG_NOTICE;
1410 rte_set_log_level (log_level);
1414 /* make copy of args as rte_eal_init tends to mess up with arg array */
1415 for (i = 1; i < vec_len(dm->eal_init_args); i++)
1416 dm->eal_init_args_str = format(dm->eal_init_args_str, "%s ",
1417 dm->eal_init_args[i]);
1419 ret = rte_eal_init(vec_len(dm->eal_init_args), (char **) dm->eal_init_args);
1421 /* lazy umount hugepages */
1422 umount2(DEFAULT_HUGE_DIR, MNT_DETACH);
1425 return clib_error_return (0, "rte_eal_init returned %d", ret);
1427 /* Dump the physical memory layout prior to creating the mbuf_pool */
1428 fprintf(stdout, "DPDK physical memory layout:\n");
1429 rte_dump_physmem_layout(stdout);
1431 /* main thread 1st */
1432 error = vlib_buffer_pool_create(vm, dm->num_mbufs, rte_socket_id());
1436 for (i = 0; i < RTE_MAX_LCORE; i++)
1438 error = vlib_buffer_pool_create(vm, dm->num_mbufs,
1439 rte_lcore_to_socket_id(i));
1446 vlib_node_runtime_t * rt = vlib_node_get_runtime (vm, dpdk_input_node.index);
1447 rt->function = dpdk_input_rss;
1453 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1455 void dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1457 vnet_main_t * vnm = vnet_get_main();
1458 struct rte_eth_link prev_link = xd->link;
1460 u8 hw_flags_chg = 0;
1462 /* only update link state for PMD interfaces */
1463 if (xd->dev_type != VNET_DPDK_DEV_ETH)
1466 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1467 memset(&xd->link, 0, sizeof(xd->link));
1468 rte_eth_link_get_nowait (xd->device_index, &xd->link);
1470 if (LINK_STATE_ELOGS)
1472 vlib_main_t * vm = vlib_get_main();
1473 ELOG_TYPE_DECLARE(e) = {
1475 "update-link-state: sw_if_index %d, admin_up %d,"
1476 "old link_state %d new link_state %d",
1477 .format_args = "i4i1i1i1",
1480 struct { u32 sw_if_index; u8 admin_up;
1481 u8 old_link_state; u8 new_link_state;} *ed;
1482 ed = ELOG_DATA (&vm->elog_main, e);
1483 ed->sw_if_index = xd->vlib_sw_if_index;
1484 ed->admin_up = xd->admin_up;
1485 ed->old_link_state = (u8)
1486 vnet_hw_interface_is_link_up (vnm, xd->vlib_hw_if_index);
1487 ed->new_link_state = (u8) xd->link.link_status;
1490 if ((xd->admin_up == 1) &&
1491 ((xd->link.link_status != 0) ^
1492 vnet_hw_interface_is_link_up (vnm, xd->vlib_hw_if_index)))
1495 hw_flags |= (xd->link.link_status ?
1496 VNET_HW_INTERFACE_FLAG_LINK_UP: 0);
1499 if (hw_flags_chg || (xd->link.link_duplex != prev_link.link_duplex))
1502 switch (xd->link.link_duplex)
1504 case ETH_LINK_HALF_DUPLEX:
1505 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1507 case ETH_LINK_FULL_DUPLEX:
1508 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1514 if (hw_flags_chg || (xd->link.link_speed != prev_link.link_speed))
1517 switch (xd->link.link_speed)
1519 case ETH_LINK_SPEED_10:
1520 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10M;
1522 case ETH_LINK_SPEED_100:
1523 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_100M;
1525 case ETH_LINK_SPEED_1000:
1526 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_1G;
1528 case ETH_LINK_SPEED_10000:
1529 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10G;
1531 case ETH_LINK_SPEED_40G:
1532 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_40G;
1537 clib_warning("unknown link speed %d", xd->link.link_speed);
1543 if (LINK_STATE_ELOGS)
1545 vlib_main_t * vm = vlib_get_main();
1547 ELOG_TYPE_DECLARE(e) = {
1548 .format = "update-link-state: sw_if_index %d, new flags %d",
1549 .format_args = "i4i4",
1552 struct { u32 sw_if_index; u32 flags; } *ed;
1553 ed = ELOG_DATA (&vm->elog_main, e);
1554 ed->sw_if_index = xd->vlib_sw_if_index;
1555 ed->flags = hw_flags;
1557 vnet_hw_interface_set_flags (vnm, xd->vlib_hw_if_index, hw_flags);
1562 dpdk_process (vlib_main_t * vm,
1563 vlib_node_runtime_t * rt,
1566 clib_error_t * error;
1567 vnet_main_t * vnm = vnet_get_main();
1568 dpdk_main_t * dm = &dpdk_main;
1569 ethernet_main_t * em = ðernet_main;
1571 vlib_thread_main_t * tm = vlib_get_thread_main();
1575 error = dpdk_lib_init (dm);
1578 * Turn on the input node if we found some devices to drive
1579 * and we're not running worker threads or i/o threads
1582 if (error == 0 && vec_len(dm->devices) > 0)
1584 if (tm->n_vlib_mains == 1)
1585 vlib_node_set_state (vm, dpdk_input_node.index,
1586 VLIB_NODE_STATE_POLLING);
1587 else if (tm->main_thread_is_io_node)
1588 vlib_node_set_state (vm, dpdk_io_input_node.index,
1589 VLIB_NODE_STATE_POLLING);
1590 else if (!dm->have_io_threads)
1591 for (i=0; i < tm->n_vlib_mains; i++)
1592 if (vec_len(dm->devices_by_cpu[i]) > 0)
1593 vlib_node_set_state (vlib_mains[i], dpdk_input_node.index,
1594 VLIB_NODE_STATE_POLLING);
1598 clib_error_report (error);
1600 dpdk_vhost_user_process_init(&vu_state);
1602 dm->io_thread_release = 1;
1604 f64 now = vlib_time_now (vm);
1605 vec_foreach (xd, dm->devices)
1607 dpdk_update_link_state (xd, now);
1610 { // Setup MACs for bond interfaces and their links which was initialized in
1611 // dpdk_port_setup() but needs to be done again here to take effect.
1612 int nports = rte_eth_dev_count();
1614 for (i = 0; i < nports; i++) {
1615 struct rte_eth_dev_info dev_info;
1616 rte_eth_dev_info_get(i, &dev_info);
1617 if (!dev_info.driver_name)
1618 dev_info.driver_name = dev_info.pci_dev->driver->name;
1619 ASSERT(dev_info.driver_name);
1620 if (strncmp(dev_info.driver_name, "rte_bond_pmd", 12) == 0) {
1623 int nlink = rte_eth_bond_slaves_get(i, slink, 16);
1625 vnet_hw_interface_t * hi;
1626 ethernet_interface_t * ei;
1627 /* Get MAC of 1st slave link */
1628 rte_eth_macaddr_get(slink[0], (struct ether_addr *)addr);
1629 /* Set MAC of bounded interface to that of 1st slave link */
1630 rte_eth_bond_mac_address_set(i, (struct ether_addr *)addr);
1631 /* Populate MAC of bonded interface in VPP hw tables */
1632 hi = vnet_get_hw_interface (
1633 vnm, dm->devices[i].vlib_hw_if_index);
1634 ei = pool_elt_at_index (em->interfaces, hi->hw_instance);
1635 memcpy (hi->hw_address, addr, 6);
1636 memcpy (ei->address, addr, 6);
1637 /* Add MAC to other slave links */
1640 rte_eth_dev_mac_addr_add(
1641 slink[nlink], (struct ether_addr *)addr, 0);
1652 * check each time through the loop in case intervals are changed
1654 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1655 dm->link_state_poll_interval : dm->stat_poll_interval;
1657 vlib_process_wait_for_event_or_clock (vm, min_wait);
1659 if (dpdk_get_admin_up_down_in_progress())
1660 /* skip the poll if an admin up down is in progress (on any interface) */
1663 vec_foreach (xd, dm->devices)
1665 f64 now = vlib_time_now (vm);
1666 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1667 dpdk_update_counters (xd, now);
1668 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1669 dpdk_update_link_state (xd, now);
1671 if (xd->dev_type == VNET_DPDK_DEV_VHOST_USER)
1672 if (dpdk_vhost_user_process_if(vm, xd, vu_state) != 0)
1677 dpdk_vhost_user_process_cleanup(vu_state);
1682 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1683 .function = dpdk_process,
1684 .type = VLIB_NODE_TYPE_PROCESS,
1685 .name = "dpdk-process",
1686 .process_log2_n_stack_bytes = 17,
1689 int dpdk_set_stat_poll_interval (f64 interval)
1691 if (interval < DPDK_MIN_STATS_POLL_INTERVAL)
1692 return (VNET_API_ERROR_INVALID_VALUE);
1694 dpdk_main.stat_poll_interval = interval;
1699 int dpdk_set_link_state_poll_interval (f64 interval)
1701 if (interval < DPDK_MIN_LINK_POLL_INTERVAL)
1702 return (VNET_API_ERROR_INVALID_VALUE);
1704 dpdk_main.link_state_poll_interval = interval;
1710 dpdk_init (vlib_main_t * vm)
1712 dpdk_main_t * dm = &dpdk_main;
1714 clib_error_t * error = 0;
1715 vlib_thread_main_t * tm = vlib_get_thread_main();
1717 /* verify that structs are cacheline aligned */
1718 ASSERT(offsetof(dpdk_device_t, cacheline0) == 0);
1719 ASSERT(offsetof(dpdk_device_t, cacheline1) == CLIB_CACHE_LINE_BYTES);
1720 ASSERT(offsetof(dpdk_worker_t, cacheline0) == 0);
1721 ASSERT(offsetof(frame_queue_trace_t, cacheline0) == 0);
1723 /* Add references to DPDK Driver Constructor functions to get the dynamic
1724 * loader to pull in the driver library & run the constructors.
1728 void devinitfn_ ##d(void); \
1729 __attribute__((unused)) void (* volatile pf)(void); \
1730 pf = devinitfn_ ##d; \
1733 #ifdef RTE_LIBRTE_EM_PMD
1737 #ifdef RTE_LIBRTE_IGB_PMD
1741 #ifdef RTE_LIBRTE_IXGBE_PMD
1745 #ifdef RTE_LIBRTE_I40E_PMD
1747 _(rte_i40evf_driver)
1750 #ifdef RTE_LIBRTE_FM10K_PMD
1754 #ifdef RTE_LIBRTE_VIRTIO_PMD
1755 _(rte_virtio_driver)
1758 #ifdef RTE_LIBRTE_VMXNET3_PMD
1759 _(rte_vmxnet3_driver)
1762 #ifdef RTE_LIBRTE_VICE_PMD
1766 #ifdef RTE_LIBRTE_ENIC_PMD
1770 #ifdef RTE_LIBRTE_PMD_AF_PACKET
1771 _(pmd_af_packet_drv)
1774 #ifdef RTE_LIBRTE_CXGBE_PMD
1778 #ifdef RTE_LIBRTE_PMD_BOND
1785 * At the moment, the ThunderX NIC driver doesn't have
1786 * an entry point named "devinitfn_rte_xxx_driver"
1791 __attribute__((unused)) void (* volatile pf)(void); \
1795 #ifdef RTE_LIBRTE_THUNDERVNIC_PMD
1796 _(rte_nicvf_pmd_init)
1801 dm->vnet_main = vnet_get_main();
1803 ei = vlib_get_node_by_name (vm, (u8 *) "ethernet-input");
1805 return clib_error_return (0, "ethernet-input node AWOL");
1807 dm->ethernet_input_node_index = ei->index;
1810 dm->num_mbufs = dm->num_mbufs ? dm->num_mbufs : NB_MBUF;
1811 vec_add1 (dm->eal_init_args, (u8 *) "vnet");
1813 dm->dpdk_device_by_kni_port_id = hash_create (0, sizeof (uword));
1814 dm->vu_sw_if_index_by_listener_fd = hash_create (0, sizeof (uword));
1815 dm->vu_sw_if_index_by_sock_fd = hash_create (0, sizeof (uword));
1817 /* $$$ use n_thread_stacks since it's known-good at this point */
1818 vec_validate (dm->recycle, tm->n_thread_stacks - 1);
1820 /* initialize EFD (early fast discard) default settings */
1821 dm->efd.enabled = DPDK_EFD_DISABLED;
1822 dm->efd.queue_hi_thresh = ((DPDK_EFD_DEFAULT_DEVICE_QUEUE_HI_THRESH_PCT *
1823 DPDK_NB_RX_DESC_10GE)/100);
1824 dm->efd.consec_full_frames_hi_thresh =
1825 DPDK_EFD_DEFAULT_CONSEC_FULL_FRAMES_HI_THRESH;
1827 /* vhost-user coalescence frames defaults */
1828 dm->vhost_coalesce_frames = 32;
1829 dm->vhost_coalesce_time = 1e-3;
1831 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1832 dm->buffer_flags_template =
1833 (VLIB_BUFFER_TOTAL_LENGTH_VALID
1834 | IP_BUFFER_L4_CHECKSUM_COMPUTED
1835 | IP_BUFFER_L4_CHECKSUM_CORRECT);
1837 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1838 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1841 if ((error = vlib_call_init_function (vm, dpdk_cli_init)))
1847 VLIB_INIT_FUNCTION (dpdk_init);