/* * Copyright (c) 2015 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "dpdk_priv.h" dpdk_main_t dpdk_main; /* force linker to link functions used by vlib and declared weak */ void *vlib_weakly_linked_functions[] = { &rte_pktmbuf_init, &rte_pktmbuf_pool_init, }; #define LINK_STATE_ELOGS 0 #define DEFAULT_HUGE_DIR "/run/vpp/hugepages" #define VPP_RUN_DIR "/run/vpp" /* Port configuration, mildly modified Intel app values */ static struct rte_eth_conf port_conf_template = { .rxmode = { .split_hdr_size = 0, .header_split = 0, /**< Header Split disabled */ .hw_ip_checksum = 0, /**< IP checksum offload disabled */ .hw_vlan_filter = 0, /**< VLAN filtering disabled */ .hw_strip_crc = 1, /**< CRC stripped by hardware */ }, .txmode = { .mq_mode = ETH_MQ_TX_NONE, }, }; clib_error_t * dpdk_port_setup (dpdk_main_t * dm, dpdk_device_t * xd) { vlib_main_t * vm = vlib_get_main(); vlib_buffer_main_t * bm = vm->buffer_main; int rv; int j; ASSERT(os_get_cpu_number() == 0); if (xd->admin_up) { vnet_hw_interface_set_flags (dm->vnet_main, xd->vlib_hw_if_index, 0); rte_eth_dev_stop (xd->device_index); } rv = rte_eth_dev_configure (xd->device_index, xd->rx_q_used, xd->tx_q_used, &xd->port_conf); if (rv < 0) return clib_error_return (0, "rte_eth_dev_configure[%d]: err %d", xd->device_index, rv); /* Set up one TX-queue per worker thread */ for (j = 0; j < xd->tx_q_used; j++) { rv = rte_eth_tx_queue_setup(xd->device_index, j, xd->nb_tx_desc, xd->cpu_socket, &xd->tx_conf); if (rv < 0) break; } if (rv < 0) return clib_error_return (0, "rte_eth_tx_queue_setup[%d]: err %d", xd->device_index, rv); for (j = 0; j < xd->rx_q_used; j++) { rv = rte_eth_rx_queue_setup(xd->device_index, j, xd->nb_rx_desc, xd->cpu_socket, 0, bm->pktmbuf_pools[xd->cpu_socket_id_by_queue[j]]); if (rv < 0) return clib_error_return (0, "rte_eth_rx_queue_setup[%d]: err %d", xd->device_index, rv); } if (xd->admin_up) { rte_eth_dev_start (xd->device_index); } return 0; } static u32 dpdk_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hi, u32 flags) { dpdk_main_t * dm = &dpdk_main; dpdk_device_t * xd = vec_elt_at_index (dm->devices, hi->dev_instance); u32 old = 0; if (ETHERNET_INTERFACE_FLAG_CONFIG_PROMISC(flags)) { old = xd->promisc; xd->promisc = flags & ETHERNET_INTERFACE_FLAG_ACCEPT_ALL; if (xd->admin_up) { if (xd->promisc) rte_eth_promiscuous_enable(xd->device_index); else rte_eth_promiscuous_disable(xd->device_index); } } else if (ETHERNET_INTERFACE_FLAG_CONFIG_MTU(flags)) { /* * DAW-FIXME: The Cisco VIC firmware does not provide an api for a * driver to dynamically change the mtu. If/when the * VIC firmware gets fixed, then this should be removed. */ if (xd->pmd == VNET_DPDK_PMD_VICE || xd->pmd == VNET_DPDK_PMD_ENIC) { struct rte_eth_dev_info dev_info; /* * Restore mtu to what has been set by CIMC in the firmware cfg. */ rte_eth_dev_info_get(xd->device_index, &dev_info); hi->max_packet_bytes = dev_info.max_rx_pktlen; vlib_cli_output (vlib_get_main(), "Cisco VIC mtu can only be changed " "using CIMC then rebooting the server!"); } else { int rv; /* * DAW-FIXME: The DPDK VMXNET3 driver does not currently support * multi-buffer packets. Max out at 1518 bytes for now. * * If/when the driver gets fixed, then this should be * removed. */ if ((xd->pmd == VNET_DPDK_PMD_VMXNET3) && (hi->max_packet_bytes > 1518)) { hi->max_packet_bytes = 1518; vlib_cli_output (vlib_get_main(), "VMXNET3 driver does not support jumbo frames " "yet -- setting mtu to 1518!"); } xd->port_conf.rxmode.max_rx_pkt_len = hi->max_packet_bytes; if (xd->admin_up) rte_eth_dev_stop (xd->device_index); rv = rte_eth_dev_configure (xd->device_index, xd->rx_q_used, xd->tx_q_used, &xd->port_conf); if (rv < 0) vlib_cli_output (vlib_get_main(), "rte_eth_dev_configure[%d]: err %d", xd->device_index, rv); rte_eth_dev_set_mtu(xd->device_index, hi->max_packet_bytes); if (xd->admin_up) rte_eth_dev_start (xd->device_index); } } return old; } #ifdef NETMAP extern int rte_netmap_probe(void); #endif static clib_error_t * dpdk_lib_init (dpdk_main_t * dm) { u32 nports; u32 nb_desc = 0; int i; clib_error_t * error; vlib_main_t * vm = vlib_get_main(); vlib_thread_main_t * tm = vlib_get_thread_main(); vnet_sw_interface_t * sw; vnet_hw_interface_t * hi; dpdk_device_t * xd; vlib_thread_registration_t * tr; uword * p; u32 next_cpu = 0; u8 af_packet_port_id = 0; dm->input_cpu_first_index = 0; dm->input_cpu_count = 1; /* find out which cpus will be used for input */ p = hash_get_mem (tm->thread_registrations_by_name, "io"); tr = p ? (vlib_thread_registration_t *) p[0] : 0; if (!tr || tr->count == 0) { /* no io threads, workers doing input */ p = hash_get_mem (tm->thread_registrations_by_name, "workers"); tr = p ? (vlib_thread_registration_t *) p[0] : 0; } else { dm->have_io_threads = 1; } if (tr && tr->count > 0) { dm->input_cpu_first_index = tr->first_index; dm->input_cpu_count = tr->count; } vec_validate_aligned (dm->devices_by_cpu, tm->n_vlib_mains - 1, CLIB_CACHE_LINE_BYTES); vec_validate_aligned (dm->workers, tm->n_vlib_mains - 1, CLIB_CACHE_LINE_BYTES); #ifdef NETMAP if(rte_netmap_probe() < 0) return clib_error_return (0, "rte netmap probe failed"); #endif nports = rte_eth_dev_count(); if (nports < 1) { clib_warning ("DPDK drivers found no ports..."); } if (CLIB_DEBUG > 0) clib_warning ("DPDK drivers found %d ports...", nports); /* * All buffers are all allocated from the same rte_mempool. * Thus they all have the same number of data bytes. */ dm->vlib_buffer_free_list_index = vlib_buffer_get_or_create_free_list ( vm, VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES, "dpdk rx"); for (i = 0; i < nports; i++) { u8 addr[6]; int j; struct rte_eth_dev_info dev_info; clib_error_t * rv; struct rte_eth_link l; /* Create vnet interface */ vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES); xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT; xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT; xd->cpu_socket = (i8) rte_eth_dev_socket_id(i); rte_eth_dev_info_get(i, &dev_info); memcpy(&xd->tx_conf, &dev_info.default_txconf, sizeof(struct rte_eth_txconf)); if (dm->no_multi_seg) { xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS; port_conf_template.rxmode.jumbo_frame = 0; } else { xd->tx_conf.txq_flags &= ~ETH_TXQ_FLAGS_NOMULTSEGS; port_conf_template.rxmode.jumbo_frame = 1; } memcpy(&xd->port_conf, &port_conf_template, sizeof(struct rte_eth_conf)); xd->tx_q_used = dev_info.max_tx_queues < tm->n_vlib_mains ? 1 : tm->n_vlib_mains; if (dm->use_rss > 1 && dev_info.max_rx_queues >= dm->use_rss) { xd->rx_q_used = dm->use_rss; xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS; xd->port_conf.rx_adv_conf.rss_conf.rss_hf = ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP; } else xd->rx_q_used = 1; xd->dev_type = VNET_DPDK_DEV_ETH; if (!xd->pmd) { #define _(s,f) else if (!strcmp(dev_info.driver_name, s)) \ xd->pmd = VNET_DPDK_PMD_##f; if (0) ; foreach_dpdk_pmd #undef _ else xd->pmd = VNET_DPDK_PMD_UNKNOWN; switch (xd->pmd) { /* 1G adapters */ case VNET_DPDK_PMD_E1000EM: case VNET_DPDK_PMD_IGB: case VNET_DPDK_PMD_IGBVF: xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G; break; /* 10G adapters */ case VNET_DPDK_PMD_IXGBE: case VNET_DPDK_PMD_IXGBEVF: xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G; xd->nb_rx_desc = DPDK_NB_RX_DESC_10GE; xd->nb_tx_desc = DPDK_NB_TX_DESC_10GE; break; /* Cisco VIC */ case VNET_DPDK_PMD_VICE: case VNET_DPDK_PMD_ENIC: rte_eth_link_get_nowait(xd->device_index, &l); if (l.link_speed == 40000) { xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G; xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE; xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE; } else { xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G; xd->nb_rx_desc = DPDK_NB_RX_DESC_10GE; xd->nb_tx_desc = DPDK_NB_TX_DESC_10GE; } break; /* Intel Fortville */ case VNET_DPDK_PMD_I40E: case VNET_DPDK_PMD_I40EVF: xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G; xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE; xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE; switch (dev_info.pci_dev->id.device_id) { case I40E_DEV_ID_10G_BASE_T: case I40E_DEV_ID_SFP_XL710: xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G; break; case I40E_DEV_ID_QSFP_A: case I40E_DEV_ID_QSFP_B: case I40E_DEV_ID_QSFP_C: xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G; break; case I40E_DEV_ID_VF: rte_eth_link_get_nowait(xd->device_index, &l); xd->port_type = l.link_speed == 10000 ? VNET_DPDK_PORT_TYPE_ETH_10G : VNET_DPDK_PORT_TYPE_ETH_40G; break; default: xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN; } break; /* Intel Red Rock Canyon */ case VNET_DPDK_PMD_FM10K: xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH; xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE; xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE; break; /* virtio */ case VNET_DPDK_PMD_VIRTIO: xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G; xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO; xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO; break; /* vmxnet3 */ case VNET_DPDK_PMD_VMXNET3: xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G; xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS; break; case VNET_DPDK_PMD_AF_PACKET: xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET; xd->af_packet_port_id = af_packet_port_id++; break; default: xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN; } #ifdef NETMAP if(strncmp(dev_info.driver_name, "vale", 4) == 0 || strncmp(dev_info.driver_name, "netmap", 6) == 0) { xd->pmd = VNET_DPDK_PMD_NETMAP; xd->port_type = VNET_DPDK_PORT_TYPE_NETMAP; } #endif } /* * Ensure default mtu is not > the mtu read from the hardware. * Otherwise rte_eth_dev_configure() will fail and the port will * not be available. */ xd->port_conf.rxmode.max_rx_pkt_len = (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen) ? dev_info.max_rx_pktlen : ETHERNET_MAX_PACKET_BYTES; /* * DAW-FIXME: VMXNET3 driver doesn't support jumbo / multi-buffer pkts */ if (xd->pmd == VNET_DPDK_PMD_VMXNET3) { xd->port_conf.rxmode.max_rx_pkt_len = 1518; xd->port_conf.rxmode.jumbo_frame = 0; } if (xd->pmd == VNET_DPDK_PMD_AF_PACKET) { f64 now = vlib_time_now(vm); u32 rnd; rnd = (u32) (now * 1e6); rnd = random_u32 (&rnd); memcpy (addr+2, &rnd, sizeof(rnd)); addr[0] = 2; addr[1] = 0xfe; } else rte_eth_macaddr_get(i,(struct ether_addr *)addr); if (xd->tx_q_used < tm->n_vlib_mains) { xd->lockp = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES, CLIB_CACHE_LINE_BYTES); memset ((void *) xd->lockp, 0, CLIB_CACHE_LINE_BYTES); } xd->device_index = xd - dm->devices; ASSERT(i == xd->device_index); xd->per_interface_next_index = ~0; /* assign interface to input thread */ dpdk_device_and_queue_t * dq; int q; for (q = 0; q < xd->rx_q_used; q++) { int cpu = dm->input_cpu_first_index + next_cpu; unsigned lcore = vlib_worker_threads[cpu].dpdk_lcore_id; /* * numa node for worker thread handling this queue * needed for taking buffers from the right mempool */ vec_validate(xd->cpu_socket_id_by_queue, q); xd->cpu_socket_id_by_queue[q] = rte_lcore_to_socket_id(lcore); /* * construct vector of (device,queue) pairs for each worker thread */ vec_add2(dm->devices_by_cpu[cpu], dq, 1); dq->device = xd->device_index; dq->queue_id = q; next_cpu++; if (next_cpu == dm->input_cpu_count) next_cpu = 0; } vec_validate_aligned (xd->tx_vectors, tm->n_vlib_mains, CLIB_CACHE_LINE_BYTES); for (j = 0; j < tm->n_vlib_mains; j++) { vec_validate_ha (xd->tx_vectors[j], DPDK_TX_RING_SIZE, sizeof(tx_ring_hdr_t), CLIB_CACHE_LINE_BYTES); vec_reset_length (xd->tx_vectors[j]); } vec_validate_aligned (xd->rx_vectors, xd->rx_q_used, CLIB_CACHE_LINE_BYTES); for (j = 0; j< xd->rx_q_used; j++) { vec_validate_aligned (xd->rx_vectors[j], VLIB_FRAME_SIZE-1, CLIB_CACHE_LINE_BYTES); vec_reset_length (xd->rx_vectors[j]); } vec_validate_aligned (xd->frames, tm->n_vlib_mains, CLIB_CACHE_LINE_BYTES); rv = dpdk_port_setup(dm, xd); if (rv < 0) return rv; /* count the number of descriptors used for this device */ nb_desc += xd->nb_rx_desc + xd->nb_tx_desc * xd->tx_q_used; error = ethernet_register_interface (dm->vnet_main, dpdk_device_class.index, xd->device_index, /* ethernet address */ addr, &xd->vlib_hw_if_index, dpdk_flag_change); if (error) return error; sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->vlib_hw_if_index); xd->vlib_sw_if_index = sw->sw_if_index; hi = vnet_get_hw_interface (dm->vnet_main, xd->vlib_hw_if_index); /* * DAW-FIXME: The Cisco VIC firmware does not provide an api for a * driver to dynamically change the mtu. If/when the * VIC firmware gets fixed, then this should be removed. */ if (xd->pmd == VNET_DPDK_PMD_VICE || xd->pmd == VNET_DPDK_PMD_ENIC) { /* * Initialize mtu to what has been set by CIMC in the firmware cfg. */ hi->max_packet_bytes = dev_info.max_rx_pktlen; /* * remove vlan tag from VIC port to fix VLAN0 issue. * TODO Handle VLAN tagged traffic */ int vlan_off; vlan_off = rte_eth_dev_get_vlan_offload(xd->device_index); vlan_off |= ETH_VLAN_STRIP_OFFLOAD; rte_eth_dev_set_vlan_offload(xd->device_index, vlan_off); } /* * DAW-FIXME: VMXNET3 driver doesn't support jumbo / multi-buffer pkts */ else if (xd->pmd == VNET_DPDK_PMD_VMXNET3) hi->max_packet_bytes = 1518; hi->max_l3_packet_bytes[VLIB_RX] = hi->max_l3_packet_bytes[VLIB_TX] = xd->port_conf.rxmode.max_rx_pkt_len - sizeof(ethernet_header_t); rte_eth_dev_set_mtu(xd->device_index, hi->max_packet_bytes); } if (dm->num_kni) { clib_warning("Initializing KNI interfaces..."); rte_kni_init(dm->num_kni); for (i = 0; i < dm->num_kni; i++) { u8 addr[6]; int j; /* Create vnet interface */ vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES); xd->dev_type = VNET_DPDK_DEV_KNI; xd->device_index = xd - dm->devices; ASSERT(nports + i == xd->device_index); xd->per_interface_next_index = ~0; xd->kni_port_id = i; xd->cpu_socket = -1; hash_set (dm->dpdk_device_by_kni_port_id, i, xd - dm->devices); xd->rx_q_used = 1; /* assign interface to input thread */ dpdk_device_and_queue_t * dq; vec_add2(dm->devices_by_cpu[dm->input_cpu_first_index], dq, 1); dq->device = xd->device_index; dq->queue_id = 0; vec_validate_aligned (xd->tx_vectors, tm->n_vlib_mains, CLIB_CACHE_LINE_BYTES); for (j = 0; j < tm->n_vlib_mains; j++) { vec_validate_ha (xd->tx_vectors[j], DPDK_TX_RING_SIZE, sizeof(tx_ring_hdr_t), CLIB_CACHE_LINE_BYTES); vec_reset_length (xd->tx_vectors[j]); } vec_validate_aligned (xd->rx_vectors, xd->rx_q_used, CLIB_CACHE_LINE_BYTES); for (j = 0; j< xd->rx_q_used; j++) { vec_validate_aligned (xd->rx_vectors[j], VLIB_FRAME_SIZE-1, CLIB_CACHE_LINE_BYTES); vec_reset_length (xd->rx_vectors[j]); } vec_validate_aligned (xd->frames, tm->n_vlib_mains, CLIB_CACHE_LINE_BYTES); /* FIXME Set up one TX-queue per worker thread */ { f64 now = vlib_time_now(vm); u32 rnd; rnd = (u32) (now * 1e6); rnd = random_u32 (&rnd); memcpy (addr+2, &rnd, sizeof(rnd)); addr[0] = 2; addr[1] = 0xfe; } error = ethernet_register_interface (dm->vnet_main, dpdk_device_class.index, xd->device_index, /* ethernet address */ addr, &xd->vlib_hw_if_index, dpdk_flag_change); if (error) return error; sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->vlib_hw_if_index); xd->vlib_sw_if_index = sw->sw_if_index; hi = vnet_get_hw_interface (dm->vnet_main, xd->vlib_hw_if_index); } } if (nb_desc > dm->num_mbufs) clib_warning ("%d mbufs allocated but total rx/tx ring size is %d\n", dm->num_mbufs, nb_desc); /* init next vhost-user if index */ dm->next_vu_if_id = 0; return 0; } /* * Tell the vlib physical memory allocator that we've handled * the initialization. We don't actually do so until * vlib_main(...) callls the dpdk config function. */ int vlib_app_physmem_init (vlib_main_t * vm, physmem_main_t * pm, int physmem_required) { return 1; } static clib_error_t * write_sys_fs (char * file_name, char * fmt, ...) { u8 * s; int fd; fd = open (file_name, O_WRONLY); if (fd < 0) return clib_error_return_unix (0, "open `%s'", file_name); va_list va; va_start (va, fmt); s = va_format (0, fmt, &va); va_end (va); vec_add1 (s, 0); // terminate c string if (write (fd, s, vec_len (s)) < 0) return clib_error_return_unix (0, "write '%s' to '%s'", s, file_name); vec_free (s); close (fd); return 0; } #define VIRTIO_PCI_NAME "virtio-pci" static clib_error_t * dpdk_bind_eth_kernel_drivers (vlib_main_t * vm, char * pci_dev_id, char * kernel_driver) { dpdk_main_t * dm = &dpdk_main; unformat_input_t _in; unformat_input_t * in = &_in; clib_error_t * error = 0; u8 * line = 0, * modcmd = 0, * path = 0; u8 * pci_vid = 0, *pci_did = 0, * devname = 0; char *driver_name = kernel_driver; FILE * fp; /* * Bail out now if we're not running as root. * This allows non-privileged use of the packet generator, etc. */ if (geteuid() != 0) return 0; /* * Get all ethernet pci device numbers for the device type specified. */ modcmd = format (0, "lspci -nDd %s | grep 0200 | " "awk '{ print $1, $3 }'%c", pci_dev_id, 0); if ((fp = popen ((const char *)modcmd, "r")) == NULL) { error = clib_error_return_unix (0, "Unable to get %s ethernet pci devices.", pci_dev_id); goto done; } vec_validate (line, BUFSIZ); vec_validate (path, BUFSIZ); while (fgets ((char *)line, BUFSIZ, fp) != NULL) { struct stat st; u8 bind_uio = 1; line[strlen ((char *)line) - 1] = 0; // chomp trailing newline. unformat_init_string (in, (char *)line, strlen((char *)line) + 1); unformat(in, "%s %s:%s", &devname, &pci_vid, &pci_did); unformat_free (in); /* * Blacklist all ethernet interfaces in the * linux IP routing tables (route --inet --inet6) */ if (strstr ((char *)dm->eth_if_blacklist, (char *)devname)) continue; /* * If there are any devices whitelisted, then blacklist all devices * which are not explicitly whitelisted. */ if (dm->eth_if_whitelist && !strstr ((char *)dm->eth_if_whitelist, (char *)devname)) continue; #ifdef NETMAP /* * Optimistically open the device as a netmap device. */ if (eth_nm_open((char *)devname)) continue; #endif _vec_len (path) = 0; path = format (path, "/sys/bus/pci/devices/%s/driver/unbind%c", devname, 0); /* * If the device is bound to a driver... */ if (stat ((const char *)path, &st) == 0) { u8 * device_path; /* * If the interface is not a virtio... */ if (!driver_name || strcmp(driver_name, VIRTIO_PCI_NAME)) { /* * If it is already bound to driver, don't unbind/bind it. */ device_path = format (0, "/sys/bus/pci/drivers/%s/%s/device%c", driver_name, devname, 0); if (stat ((const char *)device_path, &st) == 0) bind_uio = 0; vec_free (device_path); } /* * unbind it from the current driver */ if (bind_uio) { _vec_len (path) -= 1; path = format (path, "%c", 0); error = write_sys_fs ((char *)path, "%s", devname); if (error) goto done; } } /* * DAW-FIXME: The following bind/unbind dance is necessary for the dpdk * virtio poll-mode driver to work. */ if (driver_name && !strcmp(driver_name, VIRTIO_PCI_NAME)) { /* * bind interface to the native kernel module */ _vec_len (path) = 0; path = format (path, "/sys/bus/pci/drivers/%s/bind%c", driver_name, 0); error = write_sys_fs ((char *)path, "%s", devname); if (error) goto done; /* * unbind interface from the native kernel module */ _vec_len (path) -= 5; path = format (path, "unbind%c", 0); error = write_sys_fs ((char *)path, "%s", devname); if (error) goto done; } /* * bind the interface to igb_uio */ if (bind_uio) { int pci_vendor_id = strtol((char *) pci_vid, NULL, 16); int pci_device_id = strtol((char *) pci_did, NULL, 16); /* * Set PCI ID to ".../virtio-pci/new_id" for Intel fortvile adapaters */ if (pci_vendor_id == 0x8086 && (pci_device_id == I40E_DEV_ID_10G_BASE_T || pci_device_id == I40E_DEV_ID_SFP_XL710 || pci_device_id == I40E_DEV_ID_QSFP_A || pci_device_id == I40E_DEV_ID_QSFP_B || pci_device_id == I40E_DEV_ID_QSFP_C)) { _vec_len (path) = 0; path = format (path, "/sys/bus/pci/drivers/%s/new_id%c", driver_name, 0); error = write_sys_fs ((char *) path, "%s %s", pci_vid, pci_did); if (error) continue; } _vec_len (path) = 0; path = format (path, "/sys/bus/pci/drivers/%s/bind%c", driver_name, 0); error = write_sys_fs ((char *) path, "%s", devname); if (error) { error = 0; continue; } } } done: vec_free (line); vec_free (path); vec_free (devname); vec_free (pci_vid); vec_free (pci_did); vec_free (modcmd); pclose (fp); return error; } static uword unformat_socket_mem (unformat_input_t * input, va_list * va) { uword ** r = va_arg (* va, uword **); int i = 0; u32 mem; while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { if (unformat (input, ",")) hash_set (*r, i, 1024); else if (unformat (input, "%u,", &mem)) hash_set (*r, i, mem); else if (unformat (input, "%u", &mem)) hash_set (*r, i, mem); else { unformat_put_input (input); goto done; } i++; } done: return 1; } static u32 get_node_free_hugepages_num (u32 node, u32 page_size) { FILE * fp; u8 * tmp; tmp = format (0, "/sys/devices/system/node/node%u/hugepages/hugepages-%ukB/" "free_hugepages%c", node, page_size, 0); fp = fopen ((char *) tmp, "r"); vec_free(tmp); if (fp != NULL) { u8 * buffer = 0; u32 pages_avail = 0; vec_validate (buffer, 256-1); if (fgets ((char *)buffer, 256, fp)) { unformat_input_t in; unformat_init_string (&in, (char *) buffer, strlen ((char *) buffer)); unformat(&in, "%u", &pages_avail); unformat_free (&in); } vec_free(buffer); fclose(fp); return pages_avail; } return 0; } static clib_error_t * dpdk_config (vlib_main_t * vm, unformat_input_t * input) { clib_error_t * error = 0; dpdk_main_t * dm = &dpdk_main; vlib_thread_main_t * tm = vlib_get_thread_main(); u8 * s, * tmp = 0; u8 * pci_dev_id = 0; u8 * rte_cmd = 0, * ethname = 0; FILE * rte_fp; u32 log_level; int ret, i; char * fmt; #ifdef NETMAP int rxrings, txrings, rxslots, txslots, txburst; char * nmnam; #endif unformat_input_t _in; unformat_input_t * in = &_in; u8 no_pci = 0; u8 no_huge = 0; u8 huge_dir = 0; u8 file_prefix = 0; u8 * socket_mem = 0; // MATT-FIXME: inverted virtio-vhost logic to use virtio by default dm->use_virtio_vhost = 1; while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT) { /* Prime the pump */ if (unformat (input, "no-hugetlb")) { vec_add1 (dm->eal_init_args, (u8 *) "no-huge"); no_huge = 1; } else if (unformat (input, "decimal-interface-names")) dm->interface_name_format_decimal = 1; else if (unformat (input, "no-multi-seg")) dm->no_multi_seg = 1; else if (unformat (input, "dev %s", &pci_dev_id)) { if (dm->eth_if_whitelist) { /* * Don't add duplicate device id's. */ if (strstr ((char *)dm->eth_if_whitelist, (char *)pci_dev_id)) continue; _vec_len (dm->eth_if_whitelist) -= 1; // chomp trailing NULL. dm->eth_if_whitelist = format (dm->eth_if_whitelist, " %s%c", pci_dev_id, 0); } else dm->eth_if_whitelist = format (0, "%s%c", pci_dev_id, 0); } #ifdef NETMAP else if (unformat(input, "netmap %s/%d:%d/%d:%d/%d", &nmname, &rxrings, &rxslots, &txrings, &txslots, &txburst)) { char * rv; rv = (char *) eth_nm_args(nmname, rxrings, rxslots, txrings, txslots, txburst); if (rv) { error = clib_error_return (0, "%s", rv); goto done; } }else if (unformat(input, "netmap %s", &nmname)) { char * rv; rv = (char *) eth_nm_args(nmname, 0, 0, 0, 0, 0); if (rv) { error = clib_error_return (0, "%s", rv); goto done; } } #endif else if (unformat (input, "num-mbufs %d", &dm->num_mbufs)) ; else if (unformat (input, "kni %d", &dm->num_kni)) ; else if (unformat (input, "uio-driver %s", &dm->uio_driver_name)) ; else if (unformat (input, "vhost-user-coalesce-frames %d", &dm->vhost_coalesce_frames)) ; else if (unformat (input, "vhost-user-coalesce-time %f", &dm->vhost_coalesce_time)) ; else if (unformat (input, "enable-vhost-user")) dm->use_virtio_vhost = 0; else if (unformat (input, "rss %d", &dm->use_rss)) ; #define _(a) \ else if (unformat(input, #a)) \ { \ if (!strncmp(#a, "no-pci", 6)) \ no_pci = 1; \ tmp = format (0, "--%s%c", #a, 0); \ vec_add1 (dm->eal_init_args, tmp); \ } foreach_eal_double_hyphen_predicate_arg #undef _ #define _(a) \ else if (unformat(input, #a " %s", &s)) \ { \ if (!strncmp(#a, "huge-dir", 8)) \ huge_dir = 1; \ else if (!strncmp(#a, "file-prefix", 11)) \ file_prefix = 1; \ else if (!strncmp(#a, "socket-mem", 10)) \ socket_mem = vec_dup (s); \ tmp = format (0, "--%s%c", #a, 0); \ vec_add1 (dm->eal_init_args, tmp); \ vec_add1 (s, 0); \ vec_add1 (dm->eal_init_args, s); \ } foreach_eal_double_hyphen_arg #undef _ #define _(a,b) \ else if (unformat(input, #a " %s", &s)) \ { \ tmp = format (0, "-%s%c", #b, 0); \ vec_add1 (dm->eal_init_args, tmp); \ vec_add1 (s, 0); \ vec_add1 (dm->eal_init_args, s); \ } foreach_eal_single_hyphen_arg #undef _ #define _(a,b) \ else if (unformat(input, #a " %s", &s)) \ { \ tmp = format (0, "-%s%c", #b, 0); \ vec_add1 (dm->eal_init_args, tmp); \ vec_add1 (s, 0); \ vec_add1 (dm->eal_init_args, s); \ dm->a##_set_manually = 1; \ } foreach_eal_single_hyphen_mandatory_arg #undef _ else if (unformat(input, "default")) ; else { error = clib_error_return (0, "unknown input `%U'", format_unformat_error, input); goto done; } } if (!dm->uio_driver_name) dm->uio_driver_name = format (0, "igb_uio"); /* * Use 1G huge pages if available. */ if (!no_huge && !huge_dir) { uword * mem_by_socket = hash_create (0, sizeof (uword)); uword c; u8 use_1g = 1; u8 use_2m = 1; int rv; umount(DEFAULT_HUGE_DIR); /* Process "socket-mem" parameter value */ if (vec_len (socket_mem)) { unformat_input_t in; unformat_init_vector(&in, socket_mem); unformat(&in, "%U", unformat_socket_mem, &mem_by_socket); unformat_free(&in); } else use_1g = 0; /* check if available enough 1GB pages for each socket */ clib_bitmap_foreach (c, tm->cpu_socket_bitmap, ({ uword * p = hash_get (mem_by_socket, c); if (p) { u32 mem = p[0]; if (mem) { u32 pages_num_1g = mem / 1024; u32 pages_num_2m = mem / 2; u32 pages_avail; pages_avail = get_node_free_hugepages_num(c, 1048576); if (!(pages_avail >= pages_num_1g)) use_1g = 0; pages_avail = get_node_free_hugepages_num(c, 2048); if (!(pages_avail >= pages_num_2m)) use_2m = 0; } } })); hash_free (mem_by_socket); rv = mkdir(VPP_RUN_DIR, 0755); if (rv && errno != EEXIST) { error = clib_error_return (0, "mkdir '%s' failed errno %d", VPP_RUN_DIR, errno); goto done; } rv = mkdir(DEFAULT_HUGE_DIR, 0755); if (rv && errno != EEXIST) { error = clib_error_return (0, "mkdir '%s' failed errno %d", DEFAULT_HUGE_DIR, errno); goto done; } if (use_1g) { rv = mount("none", DEFAULT_HUGE_DIR, "hugetlbfs", 0, "pagesize=1G"); } else if (use_2m) { rv = mount("none", DEFAULT_HUGE_DIR, "hugetlbfs", 0, NULL); } else { return clib_error_return (0, "not enough free huge pages"); } if (rv) { error = clib_error_return (0, "mount failed %d", errno); goto done; } tmp = format (0, "--huge-dir%c", 0); vec_add1 (dm->eal_init_args, tmp); tmp = format (0, "%s%c", DEFAULT_HUGE_DIR, 0); vec_add1 (dm->eal_init_args, tmp); if (!file_prefix) { tmp = format (0, "--file-prefix%c", 0); vec_add1 (dm->eal_init_args, tmp); tmp = format (0, "vpp%c", 0); vec_add1 (dm->eal_init_args, tmp); } } /* * Blacklist all ethernet interfaces in the linux IP routing tables. */ dm->eth_if_blacklist = format (0, "%c", 0); rte_cmd = format (0, "route --inet --inet6 -n|awk '{print $7}'|sort -u|" "egrep $(echo $(ls -1d /sys/class/net/*/device|" "cut -d/ -f5)|sed -s 's/ /|/g')%c", 0); if ((rte_fp = popen ((const char *)rte_cmd, "r")) == NULL) { error = clib_error_return_unix (0, "Unable to find blacklist ethernet" " interface(s) in linux routing tables."); goto rte_cmd_err; } vec_validate (ethname, BUFSIZ); while (fgets ((char *)ethname, BUFSIZ, rte_fp) != NULL) { FILE *rlnk_fp; u8 * rlnk_cmd = 0, * devname = 0; ethname[strlen ((char *)ethname) - 1] = 0; // chomp trailing newline. rlnk_cmd = format (0, "readlink /sys/class/net/%s%c", ethname, 0); if ((rlnk_fp = popen ((const char *)rlnk_cmd, "r")) == NULL) { error = clib_error_return_unix (0, "Unable to read %s link.", ethname); goto rlnk_cmd_err; } vec_validate (devname, BUFSIZ); while (fgets ((char *)devname, BUFSIZ, rlnk_fp) != NULL) { char * pci_id = 0; /* * Extract the device PCI ID name from the link. It is the first * PCI ID searching backwards from the end of the link pathname. * For example: * readlink /sys/class/net/eth0 * ../../devices/pci0000:00/0000:00:0a.0/virtio4/net/eth0 */ for (pci_id = (char *)((devname + strlen((char *)devname))); ((u8 *)pci_id > devname) && *pci_id != '.'; pci_id--) ; /* * Verify that the field found is a valid PCI ID. */ if ((*(pci_id - 1) == '.') || ((u8 *)(pci_id - 11) < devname) || (*(pci_id - 11) != '/') || (*(pci_id - 3) != ':') || (*(pci_id - 6) != ':')) { devname[strlen ((char *)devname) - 1] = 0; // chomp trailing newline. clib_warning ("Unable to extract %s PCI ID (0x%llx \"%s\") " "from 0x%llx \"%s\"", ethname, pci_id, pci_id, devname, devname); continue; } pci_id[2] = 0; pci_id -= 10; /* Don't blacklist any interfaces which have been whitelisted. */ if (dm->eth_if_whitelist && strstr ((char *)dm->eth_if_whitelist, (char *)pci_id)) continue; _vec_len (dm->eth_if_blacklist) -= 1; // chomp trailing NULL. dm->eth_if_blacklist = format (dm->eth_if_blacklist, " %s%c", pci_id, 0); } rlnk_cmd_err: pclose (rlnk_fp); vec_free (rlnk_cmd); vec_free (devname); } rte_cmd_err: pclose (rte_fp); vec_free (rte_cmd); vec_free (ethname); if (error) return error; /* I'll bet that -c and -n must be the first and second args... */ if (!dm->coremask_set_manually) { vlib_thread_registration_t * tr; uword coremask; int i; /* main thread core */ coremask = 1 << tm->main_lcore; for (i = 0; i < vec_len (tm->registrations); i++) { tr = tm->registrations[i]; if (clib_bitmap_is_zero(tr->coremask)) continue; coremask |= tr->coremask[0]; } vec_insert (dm->eal_init_args, 2, 1); dm->eal_init_args[1] = (u8 *) "-c"; tmp = format (0, "%x%c", coremask, 0); dm->eal_init_args[2] = tmp; } if (!dm->nchannels_set_manually) { vec_insert (dm->eal_init_args, 2, 3); dm->eal_init_args[3] = (u8 *) "-n"; tmp = format (0, "%d", dm->nchannels); dm->eal_init_args[4] = tmp; } /* * If there are whitelisted devices, * add the whitelist option & device list to the dpdk arg list... */ if (dm->eth_if_whitelist) { unformat_init_string (in, (char *)dm->eth_if_whitelist, vec_len(dm->eth_if_whitelist) - 1); fmt = "-w%c"; } /* * Otherwise add the blacklisted devices to the dpdk arg list. */ else { unformat_init_string (in, (char *)dm->eth_if_blacklist, vec_len(dm->eth_if_blacklist) - 1); fmt = "-b%c"; } while (unformat_check_input (in) != UNFORMAT_END_OF_INPUT) { tmp = format (0, fmt, 0); vec_add1 (dm->eal_init_args, tmp); unformat (in, "%s", &pci_dev_id); vec_add1 (dm->eal_init_args, pci_dev_id); } if (no_pci == 0) { /* * Bind Virtio pci devices to the igb_uio kernel driver. */ error = dpdk_bind_eth_kernel_drivers (vm, "1af4:1000", VIRTIO_PCI_NAME); if (error) return error; /* * Bind vmxnet3 pci devices to the igb_uio kernel driver. */ error = dpdk_bind_eth_kernel_drivers (vm, "15ad:07b0", (char *) dm->uio_driver_name); if (error) return error; /* * Bind Intel ethernet pci devices to igb_uio kernel driver. */ error = dpdk_bind_eth_kernel_drivers (vm, "8086:", (char *) dm->uio_driver_name); /* * Bind Cisco VIC ethernet pci devices to igb_uio kernel driver. */ error = dpdk_bind_eth_kernel_drivers (vm, "1137:0043", (char *) dm->uio_driver_name); } /* set master-lcore */ tmp = format (0, "--master-lcore%c", 0); vec_add1 (dm->eal_init_args, tmp); tmp = format (0, "%u%c", tm->main_lcore, 0); vec_add1 (dm->eal_init_args, tmp); /* NULL terminate the "argv" vector, in case of stupidity */ vec_add1 (dm->eal_init_args, 0); _vec_len(dm->eal_init_args) -= 1; /* Set up DPDK eal and packet mbuf pool early. */ log_level = (CLIB_DEBUG > 0) ? RTE_LOG_DEBUG : RTE_LOG_NOTICE; rte_set_log_level (log_level); vm = dm->vlib_main; ret = rte_eal_init(vec_len(dm->eal_init_args), (char **) dm->eal_init_args); /* lazy umount hugepages */ umount2(DEFAULT_HUGE_DIR, MNT_DETACH); if (ret < 0) return clib_error_return (0, "rte_eal_init returned %d", ret); /* main thread 1st */ error = vlib_buffer_pool_create(vm, dm->num_mbufs, MBUF_SIZE, rte_socket_id()); if (error) return error; for (i = 0; i < RTE_MAX_LCORE; i++) { error = vlib_buffer_pool_create(vm, dm->num_mbufs, MBUF_SIZE, rte_lcore_to_socket_id(i)); if (error) return error; } if (dm->use_rss) { vlib_node_runtime_t * rt = vlib_node_get_runtime (vm, dpdk_input_node.index); rt->function = dpdk_input_rss; } done: return error; } VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk"); void dpdk_update_link_state (dpdk_device_t * xd, f64 now) { vnet_main_t * vnm = vnet_get_main(); struct rte_eth_link prev_link = xd->link; u32 hw_flags = 0; u8 hw_flags_chg = 0; /* only update link state for PMD interfaces */ if (xd->dev_type != VNET_DPDK_DEV_ETH) return; xd->time_last_link_update = now ? now : xd->time_last_link_update; memset(&xd->link, 0, sizeof(xd->link)); rte_eth_link_get_nowait (xd->device_index, &xd->link); if (LINK_STATE_ELOGS) { vlib_main_t * vm = vlib_get_main(); ELOG_TYPE_DECLARE(e) = { .format = "update-link-state: sw_if_index %d, admin_up %d," "old link_state %d new link_state %d", .format_args = "i4i1i1i1", }; struct { u32 sw_if_index; u8 admin_up; u8 old_link_state; u8 new_link_state;} *ed; ed = ELOG_DATA (&vm->elog_main, e); ed->sw_if_index = xd->vlib_sw_if_index; ed->admin_up = xd->admin_up; ed->old_link_state = (u8) vnet_hw_interface_is_link_up (vnm, xd->vlib_hw_if_index); ed->new_link_state = (u8) xd->link.link_status; } if ((xd->admin_up == 1) && ((xd->link.link_status != 0) ^ vnet_hw_interface_is_link_up (vnm, xd->vlib_hw_if_index))) { hw_flags_chg = 1; hw_flags |= (xd->link.link_status ? VNET_HW_INTERFACE_FLAG_LINK_UP: 0); } if (hw_flags_chg || (xd->link.link_duplex != prev_link.link_duplex)) { hw_flags_chg = 1; switch (xd->link.link_duplex) { case ETH_LINK_HALF_DUPLEX: hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX; break; case ETH_LINK_FULL_DUPLEX: hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX; break; default: break; } } if (hw_flags_chg || (xd->link.link_speed != prev_link.link_speed)) { hw_flags_chg = 1; switch (xd->link.link_speed) { case ETH_LINK_SPEED_10: hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10M; break; case ETH_LINK_SPEED_100: hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_100M; break; case ETH_LINK_SPEED_1000: hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_1G; break; case ETH_LINK_SPEED_10000: hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10G; break; case ETH_LINK_SPEED_40G: hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_40G; break; case 0: break; default: clib_warning("unknown link speed %d", xd->link.link_speed); break; } } if (hw_flags_chg) { if (LINK_STATE_ELOGS) { vlib_main_t * vm = vlib_get_main(); ELOG_TYPE_DECLARE(e) = { .format = "update-link-state: sw_if_index %d, new flags %d", .format_args = "i4i4", }; struct { u32 sw_if_index; u32 flags; } *ed; ed = ELOG_DATA (&vm->elog_main, e); ed->sw_if_index = xd->vlib_sw_if_index; ed->flags = hw_flags; } vnet_hw_interface_set_flags (vnm, xd->vlib_hw_if_index, hw_flags); } } static uword dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f) { clib_error_t * error; dpdk_main_t * dm = &dpdk_main; dpdk_device_t * xd; vlib_thread_main_t * tm = vlib_get_thread_main(); void *vu_state; int i; error = dpdk_lib_init (dm); /* * Turn on the input node if we found some devices to drive * and we're not running worker threads or i/o threads */ if (error == 0 && vec_len(dm->devices) > 0) { if (tm->n_vlib_mains == 1) vlib_node_set_state (vm, dpdk_input_node.index, VLIB_NODE_STATE_POLLING); else if (tm->main_thread_is_io_node) vlib_node_set_state (vm, dpdk_io_input_node.index, VLIB_NODE_STATE_POLLING); else if (!dm->have_io_threads) for (i=0; i < tm->n_vlib_mains; i++) if (vec_len(dm->devices_by_cpu[i]) > 0) vlib_node_set_state (vlib_mains[i], dpdk_input_node.index, VLIB_NODE_STATE_POLLING); } if (error) clib_error_report (error); dpdk_vhost_user_process_init(&vu_state); dm->io_thread_release = 1; f64 now = vlib_time_now (vm); vec_foreach (xd, dm->devices) { dpdk_update_link_state (xd, now); } while (1) { vlib_process_wait_for_event_or_clock (vm, 5.0); if (dpdk_get_admin_up_down_in_progress()) /* skip the poll if an admin up down is in progress (on any interface) */ continue; vec_foreach (xd, dm->devices) { f64 now = vlib_time_now (vm); if ((now - xd->time_last_stats_update) >= DPDK_STATS_POLL_INTERVAL) dpdk_update_counters (xd, now); if ((now - xd->time_last_link_update) >= DPDK_LINK_POLL_INTERVAL) dpdk_update_link_state (xd, now); if (xd->dev_type == VNET_DPDK_DEV_VHOST_USER) if (dpdk_vhost_user_process_if(vm, xd, vu_state) != 0) continue; } } dpdk_vhost_user_process_cleanup(vu_state); return 0; } VLIB_REGISTER_NODE (dpdk_process_node,static) = { .function = dpdk_process, .type = VLIB_NODE_TYPE_PROCESS, .name = "dpdk-process", .process_log2_n_stack_bytes = 17, }; clib_error_t * dpdk_init (vlib_main_t * vm) { dpdk_main_t * dm = &dpdk_main; vlib_node_t * ei; clib_error_t * error = 0; vlib_thread_main_t * tm = vlib_get_thread_main(); /* verify that structs are cacheline aligned */ ASSERT(offsetof(dpdk_device_t, cacheline0) == 0); ASSERT(offsetof(dpdk_device_t, cacheline1) == CLIB_CACHE_LINE_BYTES); ASSERT(offsetof(dpdk_worker_t, cacheline0) == 0); ASSERT(offsetof(frame_queue_trace_t, cacheline0) == 0); /* Add references to DPDK Driver Constructor functions to get the dynamic * loader to pull in the driver library & run the constructors. */ #define _(d) \ do { \ void devinitfn_ ##d(void); \ __attribute__((unused)) void (* volatile pf)(void); \ pf = devinitfn_ ##d; \ } while(0); #ifdef RTE_LIBRTE_EM_PMD _(em_pmd_drv) #endif #ifdef RTE_LIBRTE_IGB_PMD _(pmd_igb_drv) #endif #ifdef RTE_LIBRTE_IXGBE_PMD _(rte_ixgbe_driver) #endif #ifdef RTE_LIBRTE_I40E_PMD _(rte_i40e_driver) _(rte_i40evf_driver) #endif #ifdef RTE_LIBRTE_FM10K_PMD _(rte_fm10k_driver) #endif #ifdef RTE_LIBRTE_VIRTIO_PMD _(rte_virtio_driver) #endif #ifdef RTE_LIBRTE_VMXNET3_PMD _(rte_vmxnet3_driver) #endif #ifdef RTE_LIBRTE_VICE_PMD _(rte_vice_driver) #endif #ifdef RTE_LIBRTE_ENIC_PMD _(rte_enic_driver) #endif #ifdef RTE_LIBRTE_PMD_AF_PACKET _(pmd_af_packet_drv) #endif #undef _ dm->vlib_main = vm; dm->vnet_main = vnet_get_main(); ei = vlib_get_node_by_name (vm, (u8 *) "ethernet-input"); if (ei == 0) return clib_error_return (0, "ethernet-input node AWOL"); dm->ethernet_input_node_index = ei->index; dm->nchannels = 4; dm->num_mbufs = dm->num_mbufs ? dm->num_mbufs : NB_MBUF; vec_add1 (dm->eal_init_args, (u8 *) "vnet"); dm->dpdk_device_by_kni_port_id = hash_create (0, sizeof (uword)); dm->vu_sw_if_index_by_listener_fd = hash_create (0, sizeof (uword)); dm->vu_sw_if_index_by_sock_fd = hash_create (0, sizeof (uword)); /* $$$ use n_thread_stacks since it's known-good at this point */ vec_validate (dm->recycle, tm->n_thread_stacks - 1); /* initialize EFD (early fast discard) default settings */ dm->efd.enabled = DPDK_EFD_DISABLED; dm->efd.queue_hi_thresh = ((DPDK_EFD_DEFAULT_DEVICE_QUEUE_HI_THRESH_PCT * DPDK_NB_RX_DESC_10GE)/100); dm->efd.consec_full_frames_hi_thresh = DPDK_EFD_DEFAULT_CONSEC_FULL_FRAMES_HI_THRESH; /* vhost-user coalescence frames defaults */ dm->vhost_coalesce_frames = 32; dm->vhost_coalesce_time = 1e-3; /* init CLI */ if ((error = vlib_call_init_function (vm, dpdk_cli_init))) return error; return error; } VLIB_INIT_FUNCTION (dpdk_init);