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-rw-r--r--vnet/vnet/devices/dpdk/init.c1728
1 files changed, 1728 insertions, 0 deletions
diff --git a/vnet/vnet/devices/dpdk/init.c b/vnet/vnet/devices/dpdk/init.c
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+++ b/vnet/vnet/devices/dpdk/init.c
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+/*
+ * 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 <vnet/vnet.h>
+#include <vppinfra/vec.h>
+#include <vppinfra/error.h>
+#include <vppinfra/format.h>
+
+#include <vnet/ethernet/ethernet.h>
+#include <vnet/devices/dpdk/dpdk.h>
+#include <vlib/unix/physmem.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <sys/mount.h>
+#include <string.h>
+#include <fcntl.h>
+
+#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);
+