/* * 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 #include #include #include #include #include #include #include #include #include #define ETHER_MAX_LEN 1518 /**< Maximum frame len, including CRC. */ dpdk_main_t dpdk_main; dpdk_config_main_t dpdk_config_main; #define LINK_STATE_ELOGS 0 /* Port configuration, mildly modified Intel app values */ static dpdk_port_type_t port_type_from_speed_capa (struct rte_eth_dev_info *dev_info) { if (dev_info->speed_capa & ETH_LINK_SPEED_100G) return VNET_DPDK_PORT_TYPE_ETH_100G; else if (dev_info->speed_capa & ETH_LINK_SPEED_56G) return VNET_DPDK_PORT_TYPE_ETH_56G; else if (dev_info->speed_capa & ETH_LINK_SPEED_50G) return VNET_DPDK_PORT_TYPE_ETH_50G; else if (dev_info->speed_capa & ETH_LINK_SPEED_40G) return VNET_DPDK_PORT_TYPE_ETH_40G; else if (dev_info->speed_capa & ETH_LINK_SPEED_25G) return VNET_DPDK_PORT_TYPE_ETH_25G; else if (dev_info->speed_capa & ETH_LINK_SPEED_20G) return VNET_DPDK_PORT_TYPE_ETH_20G; else if (dev_info->speed_capa & ETH_LINK_SPEED_10G) return VNET_DPDK_PORT_TYPE_ETH_10G; else if (dev_info->speed_capa & ETH_LINK_SPEED_5G) return VNET_DPDK_PORT_TYPE_ETH_5G; else if (dev_info->speed_capa & ETH_LINK_SPEED_2_5G) return VNET_DPDK_PORT_TYPE_ETH_2_5G; else if (dev_info->speed_capa & ETH_LINK_SPEED_1G) return VNET_DPDK_PORT_TYPE_ETH_1G; return VNET_DPDK_PORT_TYPE_UNKNOWN; } static dpdk_port_type_t port_type_from_link_speed (u32 link_speed) { switch (link_speed) { case ETH_SPEED_NUM_1G: return VNET_DPDK_PORT_TYPE_ETH_1G; case ETH_SPEED_NUM_2_5G: return VNET_DPDK_PORT_TYPE_ETH_2_5G; case ETH_SPEED_NUM_5G: return VNET_DPDK_PORT_TYPE_ETH_5G; case ETH_SPEED_NUM_10G: return VNET_DPDK_PORT_TYPE_ETH_10G; case ETH_SPEED_NUM_20G: return VNET_DPDK_PORT_TYPE_ETH_20G; case ETH_SPEED_NUM_25G: return VNET_DPDK_PORT_TYPE_ETH_25G; case ETH_SPEED_NUM_40G: return VNET_DPDK_PORT_TYPE_ETH_40G; case ETH_SPEED_NUM_50G: return VNET_DPDK_PORT_TYPE_ETH_50G; case ETH_SPEED_NUM_56G: return VNET_DPDK_PORT_TYPE_ETH_56G; case ETH_SPEED_NUM_100G: return VNET_DPDK_PORT_TYPE_ETH_100G; default: return VNET_DPDK_PORT_TYPE_UNKNOWN; } } 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 = (xd->flags & DPDK_DEVICE_FLAG_PROMISC) != 0; switch (flags) { case ETHERNET_INTERFACE_FLAG_DEFAULT_L3: /* set to L3/non-promisc mode */ xd->flags &= ~DPDK_DEVICE_FLAG_PROMISC; break; case ETHERNET_INTERFACE_FLAG_ACCEPT_ALL: xd->flags |= DPDK_DEVICE_FLAG_PROMISC; break; case ETHERNET_INTERFACE_FLAG_MTU: xd->port_conf.rxmode.max_rx_pkt_len = hi->max_packet_bytes; dpdk_device_setup (xd); return 0; default: return ~0; } if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) { if (xd->flags & DPDK_DEVICE_FLAG_PROMISC) rte_eth_promiscuous_enable (xd->port_id); else rte_eth_promiscuous_disable (xd->port_id); } return old; } static void dpdk_device_lock_init (dpdk_device_t * xd) { int q; vec_validate (xd->lockp, xd->tx_q_used - 1); for (q = 0; q < xd->tx_q_used; q++) { xd->lockp[q] = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES, CLIB_CACHE_LINE_BYTES); clib_memset ((void *) xd->lockp[q], 0, CLIB_CACHE_LINE_BYTES); } } static int dpdk_port_crc_strip_enabled (dpdk_device_t * xd) { return !(xd->port_conf.rxmode.offloads & DEV_RX_OFFLOAD_KEEP_CRC); } /* The function check_l3cache helps check if Level 3 cache exists or not on current CPUs return value 1: exist. return value 0: not exist. */ static int check_l3cache () { struct dirent *dp; clib_error_t *err; const char *sys_cache_dir = "/sys/devices/system/cpu/cpu0/cache"; DIR *dir_cache = opendir (sys_cache_dir); if (dir_cache == NULL) return -1; while ((dp = readdir (dir_cache)) != NULL) { if (dp->d_type == DT_DIR) { u8 *p = NULL; int level_cache = -1; p = format (p, "%s/%s/%s%c", sys_cache_dir, dp->d_name, "level", 0); if ((err = clib_sysfs_read ((char *) p, "%d", &level_cache))) clib_error_free (err); if (level_cache == 3) { closedir (dir_cache); return 1; } } } if (dir_cache != NULL) closedir (dir_cache); return 0; } static void dpdk_enable_l4_csum_offload (dpdk_device_t * xd) { xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM; xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM; xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD | DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM; } static clib_error_t * dpdk_lib_init (dpdk_main_t * dm) { u32 nports; u32 mtu, max_rx_frame; int i; clib_error_t *error; vlib_main_t *vm = vlib_get_main (); vlib_thread_main_t *tm = vlib_get_thread_main (); vnet_device_main_t *vdm = &vnet_device_main; vnet_sw_interface_t *sw; vnet_hw_interface_t *hi; dpdk_device_t *xd; vlib_pci_addr_t last_pci_addr; u32 last_pci_addr_port = 0; u8 af_packet_instance_num = 0; last_pci_addr.as_u32 = ~0; nports = rte_eth_dev_count_avail (); if (nports < 1) { dpdk_log_notice ("DPDK drivers found no Ethernet devices..."); } if (CLIB_DEBUG > 0) dpdk_log_notice ("DPDK drivers found %d ports...", nports); if (dm->conf->enable_tcp_udp_checksum) dm->buffer_flags_template &= ~(VNET_BUFFER_F_L4_CHECKSUM_CORRECT | VNET_BUFFER_F_L4_CHECKSUM_COMPUTED); /* vlib_buffer_t template */ vec_validate_aligned (dm->per_thread_data, tm->n_vlib_mains - 1, CLIB_CACHE_LINE_BYTES); for (i = 0; i < tm->n_vlib_mains; i++) { dpdk_per_thread_data_t *ptd = vec_elt_at_index (dm->per_thread_data, i); clib_memset (&ptd->buffer_template, 0, sizeof (vlib_buffer_t)); ptd->buffer_template.flags = dm->buffer_flags_template; vnet_buffer (&ptd->buffer_template)->sw_if_index[VLIB_TX] = (u32) ~ 0; } /* *INDENT-OFF* */ RTE_ETH_FOREACH_DEV(i) { u8 addr[6]; int vlan_off; struct rte_eth_dev_info dev_info; struct rte_pci_device *pci_dev; struct rte_eth_link l; dpdk_portid_t next_port_id; dpdk_device_config_t *devconf = 0; vlib_pci_addr_t pci_addr; uword *p = 0; if (!rte_eth_dev_is_valid_port(i)) continue; rte_eth_link_get_nowait (i, &l); rte_eth_dev_info_get (i, &dev_info); if (dev_info.device == 0) { dpdk_log_notice ("DPDK bug: missing device info. Skipping %s device", dev_info.driver_name); continue; } pci_dev = dpdk_get_pci_device (&dev_info); if (pci_dev) { pci_addr.domain = pci_dev->addr.domain; pci_addr.bus = pci_dev->addr.bus; pci_addr.slot = pci_dev->addr.devid; pci_addr.function = pci_dev->addr.function; p = hash_get (dm->conf->device_config_index_by_pci_addr, pci_addr.as_u32); } /* 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); if (p) { devconf = pool_elt_at_index (dm->conf->dev_confs, p[0]); xd->name = devconf->name; } else devconf = &dm->conf->default_devconf; /* Handle representor devices that share the same PCI ID */ if (dev_info.switch_info.domain_id != RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) { if (dev_info.switch_info.port_id != (uint16_t)-1) xd->interface_name_suffix = format (0, "%d", dev_info.switch_info.port_id); } /* Handle interface naming for devices with multiple ports sharing same PCI ID */ else if (pci_dev && ((next_port_id = rte_eth_find_next (i + 1)) != RTE_MAX_ETHPORTS)) { struct rte_eth_dev_info di = { 0 }; struct rte_pci_device *next_pci_dev; rte_eth_dev_info_get (next_port_id, &di); next_pci_dev = di.device ? RTE_DEV_TO_PCI (di.device) : 0; if (next_pci_dev && pci_addr.as_u32 != last_pci_addr.as_u32 && memcmp (&pci_dev->addr, &next_pci_dev->addr, sizeof (struct rte_pci_addr)) == 0) { xd->interface_name_suffix = format (0, "0"); last_pci_addr.as_u32 = pci_addr.as_u32; last_pci_addr_port = i; } else if (pci_addr.as_u32 == last_pci_addr.as_u32) { xd->interface_name_suffix = format (0, "%u", i - last_pci_addr_port); } else { last_pci_addr.as_u32 = ~0; } } else last_pci_addr.as_u32 = ~0; clib_memcpy (&xd->tx_conf, &dev_info.default_txconf, sizeof (struct rte_eth_txconf)); if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_IPV4_CKSUM) { xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_IPV4_CKSUM; xd->flags |= DPDK_DEVICE_FLAG_RX_IP4_CKSUM; } if (dm->conf->enable_tcp_udp_checksum) { if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_UDP_CKSUM) xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_UDP_CKSUM; if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_TCP_CKSUM) xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_TCP_CKSUM; } if (dm->conf->no_multi_seg) { xd->port_conf.txmode.offloads &= ~DEV_TX_OFFLOAD_MULTI_SEGS; xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME; xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER; } else { xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS; xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME; xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_SCATTER; xd->flags |= DPDK_DEVICE_FLAG_MAYBE_MULTISEG; } xd->tx_q_used = clib_min (dev_info.max_tx_queues, tm->n_vlib_mains); if (devconf->num_tx_queues > 0 && devconf->num_tx_queues < xd->tx_q_used) xd->tx_q_used = clib_min (xd->tx_q_used, devconf->num_tx_queues); if (devconf->num_rx_queues > 1 && dev_info.max_rx_queues >= devconf->num_rx_queues) { xd->rx_q_used = devconf->num_rx_queues; xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS; if (devconf->rss_fn == 0) xd->port_conf.rx_adv_conf.rss_conf.rss_hf = ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP; else { u64 unsupported_bits; xd->port_conf.rx_adv_conf.rss_conf.rss_hf = devconf->rss_fn; unsupported_bits = xd->port_conf.rx_adv_conf.rss_conf.rss_hf; unsupported_bits &= ~dev_info.flow_type_rss_offloads; if (unsupported_bits) dpdk_log_warn ("Unsupported RSS hash functions: %U", format_dpdk_rss_hf_name, unsupported_bits); } xd->port_conf.rx_adv_conf.rss_conf.rss_hf &= dev_info.flow_type_rss_offloads; } else xd->rx_q_used = 1; xd->flags |= DPDK_DEVICE_FLAG_PMD; /* workaround for drivers not setting driver_name */ if ((!dev_info.driver_name) && (pci_dev)) dev_info.driver_name = pci_dev->driver->driver.name; ASSERT (dev_info.driver_name); if (!xd->pmd) { #define _(s,f) else if (dev_info.driver_name && \ !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; xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN; xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT; xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT; switch (xd->pmd) { /* Drivers with valid speed_capa set */ case VNET_DPDK_PMD_E1000EM: case VNET_DPDK_PMD_IGB: case VNET_DPDK_PMD_IXGBE: case VNET_DPDK_PMD_I40E: case VNET_DPDK_PMD_ICE: xd->port_type = port_type_from_speed_capa (&dev_info); xd->supported_flow_actions = VNET_FLOW_ACTION_MARK | VNET_FLOW_ACTION_REDIRECT_TO_NODE | VNET_FLOW_ACTION_REDIRECT_TO_QUEUE | VNET_FLOW_ACTION_BUFFER_ADVANCE | VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP | VNET_FLOW_ACTION_RSS; if (dm->conf->no_tx_checksum_offload == 0) { xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM; xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM; xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD | DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM; } break; case VNET_DPDK_PMD_CXGBE: case VNET_DPDK_PMD_MLX4: case VNET_DPDK_PMD_MLX5: case VNET_DPDK_PMD_QEDE: case VNET_DPDK_PMD_BNXT: xd->port_type = port_type_from_speed_capa (&dev_info); break; /* SR-IOV VFs */ case VNET_DPDK_PMD_IGBVF: case VNET_DPDK_PMD_IXGBEVF: case VNET_DPDK_PMD_I40EVF: xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF; if (dm->conf->no_tx_checksum_offload == 0) { xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM; xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM; xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD | DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM; } break; /* iAVF */ case VNET_DPDK_PMD_IAVF: xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF; xd->supported_flow_actions = VNET_FLOW_ACTION_MARK | VNET_FLOW_ACTION_REDIRECT_TO_NODE | VNET_FLOW_ACTION_REDIRECT_TO_QUEUE | VNET_FLOW_ACTION_BUFFER_ADVANCE | VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP; if (dm->conf->no_tx_checksum_offload == 0) { xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM; xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM; xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD | DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM; } break; case VNET_DPDK_PMD_THUNDERX: xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF; if (dm->conf->no_tx_checksum_offload == 0) { xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM; xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM; xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD; } break; case VNET_DPDK_PMD_ENA: xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF; xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER; break; case VNET_DPDK_PMD_DPAA2: xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G; break; /* Cisco VIC */ case VNET_DPDK_PMD_ENIC: xd->port_type = port_type_from_link_speed (l.link_speed); if (dm->conf->enable_tcp_udp_checksum) dpdk_enable_l4_csum_offload (xd); break; /* Intel Red Rock Canyon */ case VNET_DPDK_PMD_FM10K: xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH; break; /* virtio */ case VNET_DPDK_PMD_VIRTIO: xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_NONE; 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->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS; break; case VNET_DPDK_PMD_AF_PACKET: xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET; xd->af_packet_instance_num = af_packet_instance_num++; break; case VNET_DPDK_PMD_VIRTIO_USER: xd->port_type = VNET_DPDK_PORT_TYPE_VIRTIO_USER; break; case VNET_DPDK_PMD_VHOST_ETHER: xd->port_type = VNET_DPDK_PORT_TYPE_VHOST_ETHER; break; case VNET_DPDK_PMD_LIOVF_ETHER: xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF; break; case VNET_DPDK_PMD_FAILSAFE: xd->port_type = VNET_DPDK_PORT_TYPE_FAILSAFE; xd->port_conf.intr_conf.lsc = 1; break; case VNET_DPDK_PMD_NETVSC: xd->port_type = port_type_from_link_speed (l.link_speed); break; default: xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN; } if (devconf->num_rx_desc) xd->nb_rx_desc = devconf->num_rx_desc; else { /* If num_rx_desc is not specified by VPP user, the current CPU is working with 2M page and has no L3 cache, default num_rx_desc is changed to 512 from original 1024 to help reduce TLB misses. */ if ((clib_mem_get_default_hugepage_size () == 2 << 20) && check_l3cache() == 0) xd->nb_rx_desc = 512; } if (devconf->num_tx_desc) xd->nb_tx_desc = devconf->num_tx_desc; else { /* If num_tx_desc is not specified by VPP user, the current CPU is working with 2M page and has no L3 cache, default num_tx_desc is changed to 512 from original 1024 to help reduce TLB misses. */ if ((clib_mem_get_default_hugepage_size () == 2 << 20) && check_l3cache() == 0) xd->nb_tx_desc = 512; } } if (xd->pmd == VNET_DPDK_PMD_AF_PACKET) { f64 now = vlib_time_now (vm); u32 rnd; rnd = (u32) (now * 1e6); rnd = random_u32 (&rnd); clib_memcpy (addr + 2, &rnd, sizeof (rnd)); addr[0] = 2; addr[1] = 0xfe; } else rte_eth_macaddr_get (i, (void *) addr); if (xd->tx_q_used < tm->n_vlib_mains) dpdk_device_lock_init (xd); xd->port_id = i; xd->device_index = xd - dm->devices; xd->per_interface_next_index = ~0; /* assign interface to input thread */ int q; error = ethernet_register_interface (dm->vnet_main, dpdk_device_class.index, xd->device_index, /* ethernet address */ addr, &xd->hw_if_index, dpdk_flag_change); if (error) return error; /* * 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. * Calculate max_frame_size and mtu supported by NIC */ if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen) { /* * This device does not support the platforms's max frame * size. Use it's advertised mru instead. */ max_rx_frame = dev_info.max_rx_pktlen; mtu = dev_info.max_rx_pktlen - sizeof (ethernet_header_t); } else { /* VPP treats MTU and max_rx_pktlen both equal to * ETHERNET_MAX_PACKET_BYTES, if dev_info.max_rx_pktlen >= * ETHERNET_MAX_PACKET_BYTES + sizeof(ethernet_header_t) */ if (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + sizeof (ethernet_header_t))) { mtu = ETHERNET_MAX_PACKET_BYTES; max_rx_frame = ETHERNET_MAX_PACKET_BYTES; /* * Some platforms do not account for Ethernet FCS (4 bytes) in * MTU calculations. To interop with them increase mru but only * if the device's settings can support it. */ if (dpdk_port_crc_strip_enabled (xd) && (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + sizeof (ethernet_header_t) + 4))) { max_rx_frame += 4; } } else { max_rx_frame = ETHERNET_MAX_PACKET_BYTES; mtu = ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t); if (dpdk_port_crc_strip_enabled (xd) && (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4))) { max_rx_frame += 4; } } } if (xd->pmd == VNET_DPDK_PMD_FAILSAFE) { /* failsafe device numerables are reported with active device only, * need to query the mtu for current device setup to overwrite * reported value. */ uint16_t dev_mtu; if (!rte_eth_dev_get_mtu (i, &dev_mtu)) { mtu = dev_mtu; max_rx_frame = mtu + sizeof (ethernet_header_t); if (dpdk_port_crc_strip_enabled (xd)) { max_rx_frame += 4; } } } /*Set port rxmode config */ xd->port_conf.rxmode.max_rx_pkt_len = max_rx_frame; sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->hw_if_index); xd->sw_if_index = sw->sw_if_index; vnet_hw_interface_set_input_node (dm->vnet_main, xd->hw_if_index, dpdk_input_node.index); if (devconf->workers) { int i; q = 0; clib_bitmap_foreach (i, devconf->workers, ({ vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q++, vdm->first_worker_thread_index + i); })); } else for (q = 0; q < xd->rx_q_used; q++) { vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q, /* any */ ~1); } /*Get vnet hardware interface */ hi = vnet_get_hw_interface (dm->vnet_main, xd->hw_if_index); /*Override default max_packet_bytes and max_supported_bytes set in * ethernet_register_interface() above*/ if (hi) { hi->max_packet_bytes = mtu; hi->max_supported_packet_bytes = max_rx_frame; hi->numa_node = xd->cpu_socket; /* Indicate ability to support L3 DMAC filtering and * initialize interface to L3 non-promisc mode */ hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_MAC_FILTER; ethernet_set_flags (dm->vnet_main, xd->hw_if_index, ETHERNET_INTERFACE_FLAG_DEFAULT_L3); } if (dm->conf->no_tx_checksum_offload == 0) if (xd->flags & DPDK_DEVICE_FLAG_TX_OFFLOAD && hi != NULL) hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD; if (devconf->tso == DPDK_DEVICE_TSO_ON && hi != NULL) { /*tcp_udp checksum must be enabled*/ if ((dm->conf->enable_tcp_udp_checksum) && (hi->flags & VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD)) { hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO; xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_TSO | DEV_TX_OFFLOAD_UDP_TSO; } else clib_warning ("%s: TCP/UDP checksum offload must be enabled", hi->name); } dpdk_device_setup (xd); if (vec_len (xd->errors)) dpdk_log_err ("setup failed for device %U. Errors:\n %U", format_dpdk_device_name, i, format_dpdk_device_errors, xd); /* * A note on Cisco VIC (PMD_ENIC) and VLAN: * * With Cisco VIC vNIC, every ingress packet is tagged. On a * trunk vNIC (C series "standalone" server), packets on no VLAN * are tagged with vlan 0. On an access vNIC (standalone or B * series "blade" server), packets on the default/native VLAN * are tagged with that vNIC's VLAN. VPP expects these packets * to be untagged, and previously enabled VLAN strip on VIC by * default. But it also broke vlan sub-interfaces. * * The VIC adapter has "untag default vlan" ingress VLAN rewrite * mode, which removes tags from these packets. VPP now includes * a local patch for the enic driver to use this untag mode, so * enabling vlan stripping is no longer needed. In future, the * driver + dpdk will have an API to set the mode after * rte_eal_init. Then, this note and local patch will be * removed. */ /* * VLAN stripping: default to VLAN strip disabled, unless specified * otherwise in the startup config. */ vlan_off = rte_eth_dev_get_vlan_offload (xd->port_id); if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON) { vlan_off |= ETH_VLAN_STRIP_OFFLOAD; if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0) dpdk_log_info ("VLAN strip enabled for interface\n"); else dpdk_log_warn ("VLAN strip cannot be supported by interface\n"); xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_VLAN_STRIP; } else { if (vlan_off & ETH_VLAN_STRIP_OFFLOAD) { vlan_off &= ~ETH_VLAN_STRIP_OFFLOAD; if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0) dpdk_log_warn ("set VLAN offload failed\n"); } xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP; } if (hi) hi->max_packet_bytes = xd->port_conf.rxmode.max_rx_pkt_len - sizeof (ethernet_header_t); else dpdk_log_warn ("hi NULL"); if (dm->conf->no_multi_seg) mtu = mtu > ETHER_MAX_LEN ? ETHER_MAX_LEN : mtu; rte_eth_dev_set_mtu (xd->port_id, mtu); } /* *INDENT-ON* */ return 0; } static void dpdk_bind_devices_to_uio (dpdk_config_main_t * conf) { vlib_main_t *vm = vlib_get_main (); clib_error_t *error; u8 *pci_addr = 0; int num_whitelisted = vec_len (conf->dev_confs); vlib_pci_device_info_t *d = 0; vlib_pci_addr_t *addr = 0, *addrs; int i; addrs = vlib_pci_get_all_dev_addrs (); /* *INDENT-OFF* */ vec_foreach (addr, addrs) { dpdk_device_config_t * devconf = 0; vec_reset_length (pci_addr); pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, addr, 0); if (d) { vlib_pci_free_device_info (d); d = 0; } d = vlib_pci_get_device_info (vm, addr, &error); if (error) { clib_error_report (error); continue; } if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO) continue; if (num_whitelisted) { uword * p = hash_get (conf->device_config_index_by_pci_addr, addr->as_u32); if (!p) { skipped: continue; } devconf = pool_elt_at_index (conf->dev_confs, p[0]); } /* Enforce Device blacklist by vendor and device */ for (i = 0; i < vec_len (conf->blacklist_by_pci_vendor_and_device); i++) { u16 vendor, device; vendor = (u16)(conf->blacklist_by_pci_vendor_and_device[i] >> 16); device = (u16)(conf->blacklist_by_pci_vendor_and_device[i] & 0xFFFF); if (d->vendor_id == vendor && d->device_id == device) { /* * Expected case: device isn't whitelisted, * so blacklist it... */ if (devconf == 0) { /* Device is blacklisted */ pool_get (conf->dev_confs, devconf); hash_set (conf->device_config_index_by_pci_addr, addr->as_u32, devconf - conf->dev_confs); devconf->pci_addr.as_u32 = addr->as_u32; devconf->is_blacklisted = 1; goto skipped; } else /* explicitly whitelisted, ignore the device blacklist */ break; } } /* virtio */ if (d->vendor_id == 0x1af4 && (d->device_id == VIRTIO_PCI_LEGACY_DEVICEID_NET || d->device_id == VIRTIO_PCI_MODERN_DEVICEID_NET)) ; /* vmxnet3 */ else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0) { /* * For vmxnet3 PCI, unless it is explicitly specified in the whitelist, * the default is to put it in the blacklist. */ if (devconf == 0) { pool_get (conf->dev_confs, devconf); hash_set (conf->device_config_index_by_pci_addr, addr->as_u32, devconf - conf->dev_confs); devconf->pci_addr.as_u32 = addr->as_u32; devconf->is_blacklisted = 1; } } /* all Intel network devices */ else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET) ; /* all Intel QAT devices VFs */ else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO && (d->device_id == 0x0443 || d->device_id == 0x18a1 || d->device_id == 0x19e3 || d->device_id == 0x37c9 || d->device_id == 0x6f55)) ; /* Cisco VIC */ else if (d->vendor_id == 0x1137 && (d->device_id == 0x0043 || d->device_id == 0x0071)) ; /* Chelsio T4/T5 */ else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000) ; /* Amazon Elastic Network Adapter */ else if (d->vendor_id == 0x1d0f && d->device_id >= 0xec20 && d->device_id <= 0xec21) ; /* Cavium Network Adapter */ else if (d->vendor_id == 0x177d && d->device_id == 0x9712) ; /* Cavium FastlinQ QL41000 Series */ else if (d->vendor_id == 0x1077 && d->device_id >= 0x8070 && d->device_id <= 0x8090) ; /* Mellanox CX3, CX3VF */ else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1003 && d->device_id <= 0x1004) { continue; } /* Mellanox CX4, CX4VF, CX4LX, CX4LXVF, CX5, CX5VF, CX5EX, CX5EXVF */ else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1013 && d->device_id <= 0x101a) { continue; } /* Mellanox CX6, CX6VF, CX6DX, CX6DXVF */ else if (d->vendor_id == 0x15b3 && d->device_id >= 0x101b && d->device_id <= 0x101e) { continue; } /* Broadcom NetXtreme S, and E series only */ else if (d->vendor_id == 0x14e4 && ((d->device_id >= 0x16c0 && d->device_id != 0x16c6 && d->device_id != 0x16c7 && d->device_id != 0x16dd && d->device_id != 0x16f7 && d->device_id != 0x16fd && d->device_id != 0x16fe && d->device_id != 0x170d && d->device_id != 0x170c && d->device_id != 0x170e && d->device_id != 0x1712 && d->device_id != 0x1713) || (d->device_id == 0x1604 || d->device_id == 0x1605 || d->device_id == 0x1614 || d->device_id == 0x1606 || d->device_id == 0x1609 || d->device_id == 0x1614))) ; else { dpdk_log_warn ("Unsupported PCI device 0x%04x:0x%04x found " "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id, pci_addr); continue; } error = vlib_pci_bind_to_uio (vm, addr, (char *) conf->uio_driver_name); if (error) { if (devconf == 0) { pool_get (conf->dev_confs, devconf); hash_set (conf->device_config_index_by_pci_addr, addr->as_u32, devconf - conf->dev_confs); devconf->pci_addr.as_u32 = addr->as_u32; } devconf->is_blacklisted = 1; clib_error_report (error); } } /* *INDENT-ON* */ vec_free (pci_addr); vlib_pci_free_device_info (d); } static void dpdk_bind_vmbus_devices_to_uio (dpdk_config_main_t * conf) { clib_error_t *error; vlib_vmbus_addr_t *addrs, *addr = 0; addrs = vlib_vmbus_get_all_dev_addrs (); /* *INDENT-OFF* */ vec_foreach (addr, addrs) { error = vlib_vmbus_bind_to_uio (addr); if (error) { clib_error_report (error); } } /* *INDENT-ON* */ } static clib_error_t * dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr, unformat_input_t * input, u8 is_default) { clib_error_t *error = 0; uword *p; dpdk_device_config_t *devconf; unformat_input_t sub_input; if (is_default) { devconf = &conf->default_devconf; } else { p = hash_get (conf->device_config_index_by_pci_addr, pci_addr.as_u32); if (!p) { pool_get (conf->dev_confs, devconf); hash_set (conf->device_config_index_by_pci_addr, pci_addr.as_u32, devconf - conf->dev_confs); } else return clib_error_return (0, "duplicate configuration for PCI address %U", format_vlib_pci_addr, &pci_addr); } devconf->pci_addr.as_u32 = pci_addr.as_u32; devconf->tso = DPDK_DEVICE_TSO_DEFAULT; if (!input) return 0; unformat_skip_white_space (input); while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues)) ; else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues)) ; else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc)) ; else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc)) ; else if (unformat (input, "name %s", &devconf->name)) ; else if (unformat (input, "workers %U", unformat_bitmap_list, &devconf->workers)) ; else if (unformat (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input)) { error = unformat_rss_fn (&sub_input, &devconf->rss_fn); if (error) break; } else if (unformat (input, "vlan-strip-offload off")) devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF; else if (unformat (input, "vlan-strip-offload on")) devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON; else if (unformat (input, "tso on")) { devconf->tso = DPDK_DEVICE_TSO_ON; } else if (unformat (input, "tso off")) { devconf->tso = DPDK_DEVICE_TSO_OFF; } else if (unformat (input, "devargs %s", &devconf->devargs)) ; else { error = clib_error_return (0, "unknown input `%U'", format_unformat_error, input); break; } } if (error) return error; if (devconf->workers && devconf->num_rx_queues == 0) devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers); else if (devconf->workers && clib_bitmap_count_set_bits (devconf->workers) != devconf->num_rx_queues) error = clib_error_return (0, "%U: number of worker threads must be " "equal to number of rx queues", format_vlib_pci_addr, &pci_addr); return error; } static clib_error_t * dpdk_log_read_ready (clib_file_t * uf) { unformat_input_t input; u8 *line, *s = 0; int n, n_try; n = n_try = 4096; while (n == n_try) { uword len = vec_len (s); vec_resize (s, len + n_try); n = read (uf->file_descriptor, s + len, n_try); if (n < 0 && errno != EAGAIN) return clib_error_return_unix (0, "read"); _vec_len (s) = len + (n < 0 ? 0 : n); } unformat_init_vector (&input, s); while (unformat_user (&input, unformat_line, &line)) { dpdk_log_notice ("%v", line); vec_free (line); } unformat_free (&input); return 0; } static clib_error_t * dpdk_config (vlib_main_t * vm, unformat_input_t * input) { clib_error_t *error = 0; dpdk_config_main_t *conf = &dpdk_config_main; vlib_thread_main_t *tm = vlib_get_thread_main (); dpdk_device_config_t *devconf; vlib_pci_addr_t pci_addr; unformat_input_t sub_input; uword default_hugepage_sz, x; u8 *s, *tmp = 0; int ret, i; int num_whitelisted = 0; u8 no_pci = 0; u8 no_vmbus = 0; u8 file_prefix = 0; u8 *socket_mem = 0; u8 *huge_dir_path = 0; u32 vendor, device; huge_dir_path = format (0, "%s/hugepages%c", vlib_unix_get_runtime_dir (), 0); conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword)); while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { /* Prime the pump */ if (unformat (input, "no-hugetlb")) { vec_add1 (conf->eal_init_args, (u8 *) "--no-huge"); } else if (unformat (input, "enable-tcp-udp-checksum")) conf->enable_tcp_udp_checksum = 1; else if (unformat (input, "no-tx-checksum-offload")) conf->no_tx_checksum_offload = 1; else if (unformat (input, "decimal-interface-names")) conf->interface_name_format_decimal = 1; else if (unformat (input, "no-multi-seg")) conf->no_multi_seg = 1; else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input, &sub_input)) { error = dpdk_device_config (conf, (vlib_pci_addr_t) (u32) ~ 1, &sub_input, 1); if (error) return error; } else if (unformat (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr, unformat_vlib_cli_sub_input, &sub_input)) { error = dpdk_device_config (conf, pci_addr, &sub_input, 0); if (error) return error; num_whitelisted++; } else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr)) { error = dpdk_device_config (conf, pci_addr, 0, 0); if (error) return error; num_whitelisted++; } else if (unformat (input, "num-mem-channels %d", &conf->nchannels)) conf->nchannels_set_manually = 0; else if (unformat (input, "num-crypto-mbufs %d", &conf->num_crypto_mbufs)) ; else if (unformat (input, "uio-driver %s", &conf->uio_driver_name)) ; else if (unformat (input, "socket-mem %s", &socket_mem)) ; else if (unformat (input, "no-pci")) { no_pci = 1; tmp = format (0, "--no-pci%c", 0); vec_add1 (conf->eal_init_args, tmp); } else if (unformat (input, "blacklist %x:%x", &vendor, &device)) { u32 blacklist_entry; if (vendor > 0xFFFF) return clib_error_return (0, "blacklist PCI vendor out of range"); if (device > 0xFFFF) return clib_error_return (0, "blacklist PCI device out of range"); blacklist_entry = (vendor << 16) | (device & 0xffff); vec_add1 (conf->blacklist_by_pci_vendor_and_device, blacklist_entry); } else if (unformat (input, "no-vmbus")) { no_vmbus = 1; tmp = format (0, "--no-vmbus%c", 0); vec_add1 (conf->eal_init_args, tmp); } #define _(a) \ else if (unformat(input, #a)) \ { \ tmp = format (0, "--%s%c", #a, 0); \ vec_add1 (conf->eal_init_args, tmp); \ } foreach_eal_double_hyphen_predicate_arg #undef _ #define _(a) \ else if (unformat(input, #a " %s", &s)) \ { \ if (!strncmp(#a, "file-prefix", 11)) \ file_prefix = 1; \ tmp = format (0, "--%s%c", #a, 0); \ vec_add1 (conf->eal_init_args, tmp); \ vec_add1 (s, 0); \ if (!strncmp(#a, "vdev", 4)) \ if (strstr((char*)s, "af_packet")) \ clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \ vec_add1 (conf->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 (conf->eal_init_args, tmp); \ vec_add1 (s, 0); \ vec_add1 (conf->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 (conf->eal_init_args, tmp); \ vec_add1 (s, 0); \ vec_add1 (conf->eal_init_args, s); \ conf->a##_set_manually = 1; \ } foreach_eal_single_hyphen_mandatory_arg #undef _ else if (unformat (input, "default")) ; else if (unformat_skip_white_space (input)) ; else { error = clib_error_return (0, "unknown input `%U'", format_unformat_error, input); goto done; } } if (!conf->uio_driver_name) conf->uio_driver_name = format (0, "auto%c", 0); default_hugepage_sz = clib_mem_get_default_hugepage_size (); /* *INDENT-OFF* */ clib_bitmap_foreach (x, tm->cpu_socket_bitmap, ( { clib_error_t *e; uword n_pages; /* preallocate at least 16MB of hugepages per socket, if more is needed it is up to consumer to preallocate more */ n_pages = round_pow2 ((uword) 16 << 20, default_hugepage_sz); n_pages /= default_hugepage_sz; if ((e = clib_sysfs_prealloc_hugepages(x, 0, n_pages))) clib_error_report (e); })); /* *INDENT-ON* */ if (!file_prefix) { tmp = format (0, "--file-prefix%c", 0); vec_add1 (conf->eal_init_args, tmp); tmp = format (0, "vpp%c", 0); vec_add1 (conf->eal_init_args, tmp); } if (error) return error; /* I'll bet that -c and -n must be the first and second args... */ if (!conf->coremask_set_manually) { vlib_thread_registration_t *tr; uword *coremask = 0; int i; /* main thread core */ coremask = clib_bitmap_set (coremask, tm->main_lcore, 1); for (i = 0; i < vec_len (tm->registrations); i++) { tr = tm->registrations[i]; coremask = clib_bitmap_or (coremask, tr->coremask); } vec_insert (conf->eal_init_args, 2, 1); conf->eal_init_args[1] = (u8 *) "-c"; tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0); conf->eal_init_args[2] = tmp; clib_bitmap_free (coremask); } if (!conf->nchannels_set_manually) { vec_insert (conf->eal_init_args, 2, 3); conf->eal_init_args[3] = (u8 *) "-n"; tmp = format (0, "%d", conf->nchannels); vec_terminate_c_string (tmp); conf->eal_init_args[4] = tmp; } if (no_pci == 0 && geteuid () == 0) dpdk_bind_devices_to_uio (conf); if (no_vmbus == 0 && geteuid () == 0) dpdk_bind_vmbus_devices_to_uio (conf); #define _(x) \ if (devconf->x == 0 && conf->default_devconf.x > 0) \ devconf->x = conf->default_devconf.x ; /* *INDENT-OFF* */ pool_foreach (devconf, conf->dev_confs, ({ /* default per-device config items */ foreach_dpdk_device_config_item /* copy vlan_strip config from default device */ if (devconf->vlan_strip_offload == 0 && conf->default_devconf.vlan_strip_offload > 0) devconf->vlan_strip_offload = conf->default_devconf.vlan_strip_offload; /* copy tso config from default device */ _(tso) /* copy tso config from default device */ _(devargs) /* add DPDK EAL whitelist/blacklist entry */ if (num_whitelisted > 0 && devconf->is_blacklisted == 0) { tmp = format (0, "-w%c", 0); vec_add1 (conf->eal_init_args, tmp); if (devconf->devargs) { tmp = format (0, "%U,%s", format_vlib_pci_addr, &devconf->pci_addr, devconf->devargs, 0); } else { tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0); } vec_add1 (conf->eal_init_args, tmp); } else if (num_whitelisted == 0 && devconf->is_blacklisted != 0) { tmp = format (0, "-b%c", 0); vec_add1 (conf->eal_init_args, tmp); tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0); vec_add1 (conf->eal_init_args, tmp); } })); /* *INDENT-ON* */ #undef _ /* set master-lcore */ tmp = format (0, "--master-lcore%c", 0); vec_add1 (conf->eal_init_args, tmp); tmp = format (0, "%u%c", tm->main_lcore, 0); vec_add1 (conf->eal_init_args, tmp); if (socket_mem) clib_warning ("socket-mem argument is deprecated"); /* NULL terminate the "argv" vector, in case of stupidity */ vec_add1 (conf->eal_init_args, 0); _vec_len (conf->eal_init_args) -= 1; /* Set up DPDK eal and packet mbuf pool early. */ int log_fds[2] = { 0 }; if (pipe (log_fds) == 0) { if (fcntl (log_fds[1], F_SETFL, O_NONBLOCK) == 0) { FILE *f = fdopen (log_fds[1], "a"); if (f && rte_openlog_stream (f) == 0) { clib_file_t t = { 0 }; t.read_function = dpdk_log_read_ready; t.file_descriptor = log_fds[0]; t.description = format (0, "DPDK logging pipe"); clib_file_add (&file_main, &t); } } else { close (log_fds[0]); close (log_fds[1]); } } vm = vlib_get_main (); /* make copy of args as rte_eal_init tends to mess up with arg array */ for (i = 1; i < vec_len (conf->eal_init_args); i++) conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ", conf->eal_init_args[i]); vec_terminate_c_string (conf->eal_init_args_str); dpdk_log_warn ("EAL init args: %s", conf->eal_init_args_str); ret = rte_eal_init (vec_len (conf->eal_init_args), (char **) conf->eal_init_args); /* lazy umount hugepages */ umount2 ((char *) huge_dir_path, MNT_DETACH); rmdir ((char *) huge_dir_path); vec_free (huge_dir_path); if (ret < 0) return clib_error_return (0, "rte_eal_init returned %d", ret); /* main thread 1st */ if ((error = dpdk_buffer_pools_create (vm))) return error; 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->flags & DPDK_DEVICE_FLAG_PMD) == 0) return; xd->time_last_link_update = now ? now : xd->time_last_link_update; clib_memset (&xd->link, 0, sizeof (xd->link)); rte_eth_link_get_nowait (xd->port_id, &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->sw_if_index; ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0; ed->old_link_state = (u8) vnet_hw_interface_is_link_up (vnm, xd->hw_if_index); ed->new_link_state = (u8) xd->link.link_status; } if ((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 (xd->link.link_speed != prev_link.link_speed) vnet_hw_interface_set_link_speed (vnm, xd->hw_if_index, xd->link.link_speed * 1000); if (xd->link.link_status != prev_link.link_status) { hw_flags_chg = 1; if (xd->link.link_status) hw_flags |= VNET_HW_INTERFACE_FLAG_LINK_UP; } 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->sw_if_index; ed->flags = hw_flags; } vnet_hw_interface_set_flags (vnm, xd->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 (); error = dpdk_lib_init (dm); if (error) clib_error_report (error); error = dpdk_cryptodev_init (vm); if (error) clib_error_report (error); tm->worker_thread_release = 1; f64 now = vlib_time_now (vm); vec_foreach (xd, dm->devices) { dpdk_update_link_state (xd, now); } while (1) { /* * check each time through the loop in case intervals are changed */ f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ? dm->link_state_poll_interval : dm->stat_poll_interval; vlib_process_wait_for_event_or_clock (vm, min_wait); if (dm->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) >= dm->stat_poll_interval) dpdk_update_counters (xd, now); if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval) dpdk_update_link_state (xd, now); } } return 0; } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (dpdk_process_node,static) = { .function = dpdk_process, .type = VLIB_NODE_TYPE_PROCESS, .name = "dpdk-process", .process_log2_n_stack_bytes = 17, }; /* *INDENT-ON* */ static clib_error_t * dpdk_init (vlib_main_t * vm) { dpdk_main_t *dm = &dpdk_main; clib_error_t *error = 0; /* verify that structs are cacheline aligned */ STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0, "Cache line marker must be 1st element in dpdk_device_t"); STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) == CLIB_CACHE_LINE_BYTES, "Data in cache line 0 is bigger than cache line size"); STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0, "Cache line marker must be 1st element in frame_queue_trace_t"); STATIC_ASSERT (RTE_CACHE_LINE_SIZE == 1 << CLIB_LOG2_CACHE_LINE_BYTES, "DPDK RTE CACHE LINE SIZE does not match with 1<vlib_main = vm; dm->vnet_main = vnet_get_main (); dm->conf = &dpdk_config_main; dm->conf->nchannels = 4; vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet"); vec_add1 (dm->conf->eal_init_args, (u8 *) "--in-memory"); /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */ dm->buffer_flags_template = (VLIB_BUFFER_TOTAL_LENGTH_VALID | VLIB_BUFFER_EXT_HDR_VALID | VNET_BUFFER_F_L4_CHECKSUM_COMPUTED | VNET_BUFFER_F_L4_CHECKSUM_CORRECT); dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL; dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL; dm->log_default = vlib_log_register_class ("dpdk", 0); return error; } VLIB_INIT_FUNCTION (dpdk_init); /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */