New upstream version 17.11-rc3
[deb_dpdk.git] / examples / ip_pipeline / init.c
index 83422e8..e56e404 100644 (file)
 #include <inttypes.h>
 #include <stdio.h>
 #include <string.h>
+#include <netinet/in.h>
+#ifdef RTE_EXEC_ENV_LINUXAPP
+#include <linux/if.h>
+#include <linux/if_tun.h>
+#endif
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
 
 #include <rte_cycles.h>
 #include <rte_ethdev.h>
@@ -41,6 +49,7 @@
 #include <rte_ip.h>
 #include <rte_eal.h>
 #include <rte_malloc.h>
+#include <rte_bus_pci.h>
 
 #include "app.h"
 #include "pipeline.h"
 
 #define APP_NAME_SIZE  32
 
+#define APP_RETA_SIZE_MAX     (ETH_RSS_RETA_SIZE_512 / RTE_RETA_GROUP_SIZE)
+
 static void
 app_init_core_map(struct app_params *app)
 {
        APP_LOG(app, HIGH, "Initializing CPU core map ...");
-       app->core_map = cpu_core_map_init(4, 32, 4, 0);
+       app->core_map = cpu_core_map_init(RTE_MAX_NUMA_NODES, RTE_MAX_LCORE,
+                               4, 0);
 
        if (app->core_map == NULL)
                rte_panic("Cannot create CPU core map\n");
@@ -68,11 +80,14 @@ app_init_core_map(struct app_params *app)
                cpu_core_map_print(app->core_map);
 }
 
+/* Core Mask String in Hex Representation */
+#define APP_CORE_MASK_STRING_SIZE ((64 * APP_CORE_MASK_SIZE) / 8 * 2 + 1)
+
 static void
 app_init_core_mask(struct app_params *app)
 {
-       uint64_t mask = 0;
        uint32_t i;
+       char core_mask_str[APP_CORE_MASK_STRING_SIZE];
 
        for (i = 0; i < app->n_pipelines; i++) {
                struct app_pipeline_params *p = &app->pipeline_params[i];
@@ -86,17 +101,18 @@ app_init_core_mask(struct app_params *app)
                if (lcore_id < 0)
                        rte_panic("Cannot create CPU core mask\n");
 
-               mask |= 1LLU << lcore_id;
+               app_core_enable_in_core_mask(app, lcore_id);
        }
 
-       app->core_mask = mask;
-       APP_LOG(app, HIGH, "CPU core mask = 0x%016" PRIx64, app->core_mask);
+       app_core_build_core_mask_string(app, core_mask_str);
+       APP_LOG(app, HIGH, "CPU core mask = 0x%s", core_mask_str);
 }
 
 static void
 app_init_eal(struct app_params *app)
 {
        char buffer[256];
+       char core_mask_str[APP_CORE_MASK_STRING_SIZE];
        struct app_eal_params *p = &app->eal_params;
        uint32_t n_args = 0;
        uint32_t i;
@@ -104,7 +120,8 @@ app_init_eal(struct app_params *app)
 
        app->eal_argv[n_args++] = strdup(app->app_name);
 
-       snprintf(buffer, sizeof(buffer), "-c%" PRIx64, app->core_mask);
+       app_core_build_core_mask_string(app, core_mask_str);
+       snprintf(buffer, sizeof(buffer), "-c%s", core_mask_str);
        app->eal_argv[n_args++] = strdup(buffer);
 
        if (p->coremap) {
@@ -234,7 +251,7 @@ app_init_eal(struct app_params *app)
        }
 
        if (p->add_driver) {
-               snprintf(buffer, sizeof(buffer), "-d=%s", p->add_driver);
+               snprintf(buffer, sizeof(buffer), "-d%s", p->add_driver);
                app->eal_argv[n_args++] = strdup(buffer);
        }
 
@@ -280,11 +297,6 @@ app_init_eal(struct app_params *app)
                app->eal_argv[n_args++] = strdup(buffer);
        }
 
-       if ((p->xen_dom0_present) && (p->xen_dom0)) {
-               snprintf(buffer, sizeof(buffer), "--xen-dom0");
-               app->eal_argv[n_args++] = strdup(buffer);
-       }
-
        snprintf(buffer, sizeof(buffer), "--");
        app->eal_argv[n_args++] = strdup(buffer);
 
@@ -314,16 +326,14 @@ app_init_mempool(struct app_params *app)
                struct app_mempool_params *p = &app->mempool_params[i];
 
                APP_LOG(app, HIGH, "Initializing %s ...", p->name);
-               app->mempool[i] = rte_mempool_create(
-                               p->name,
-                               p->pool_size,
-                               p->buffer_size,
-                               p->cache_size,
-                               sizeof(struct rte_pktmbuf_pool_private),
-                               rte_pktmbuf_pool_init, NULL,
-                               rte_pktmbuf_init, NULL,
-                               p->cpu_socket_id,
-                               0);
+               app->mempool[i] = rte_pktmbuf_pool_create(
+                       p->name,
+                       p->pool_size,
+                       p->cache_size,
+                       0, /* priv_size */
+                       p->buffer_size -
+                               sizeof(struct rte_mbuf), /* mbuf data size */
+                       p->cpu_socket_id);
 
                if (app->mempool[i] == NULL)
                        rte_panic("%s init error\n", p->name);
@@ -604,29 +614,12 @@ app_link_set_tcp_syn_filter(struct app_params *app, struct app_link_params *cp)
        }
 }
 
-static int
-app_link_is_virtual(struct app_link_params *p)
-{
-       uint32_t pmd_id = p->pmd_id;
-       struct rte_eth_dev *dev = &rte_eth_devices[pmd_id];
-
-       if (dev->dev_type == RTE_ETH_DEV_VIRTUAL)
-               return 1;
-
-       return 0;
-}
-
 void
 app_link_up_internal(struct app_params *app, struct app_link_params *cp)
 {
        uint32_t i;
        int status;
 
-       if (app_link_is_virtual(cp)) {
-               cp->state = 1;
-               return;
-       }
-
        /* For each link, add filters for IP of current link */
        if (cp->ip != 0) {
                for (i = 0; i < app->n_links; i++) {
@@ -720,7 +713,8 @@ app_link_up_internal(struct app_params *app, struct app_link_params *cp)
 
        /* PMD link up */
        status = rte_eth_dev_set_link_up(cp->pmd_id);
-       if (status < 0)
+       /* Do not panic if PMD does not provide link up functionality */
+       if (status < 0 && status != -ENOTSUP)
                rte_panic("%s (%" PRIu32 "): PMD set link up error %"
                        PRId32 "\n", cp->name, cp->pmd_id, status);
 
@@ -734,14 +728,10 @@ app_link_down_internal(struct app_params *app, struct app_link_params *cp)
        uint32_t i;
        int status;
 
-       if (app_link_is_virtual(cp)) {
-               cp->state = 0;
-               return;
-       }
-
        /* PMD link down */
        status = rte_eth_dev_set_link_down(cp->pmd_id);
-       if (status < 0)
+       /* Do not panic if PMD does not provide link down functionality */
+       if (status < 0 && status != -ENOTSUP)
                rte_panic("%s (%" PRIu32 "): PMD set link down error %"
                        PRId32 "\n", cp->name, cp->pmd_id, status);
 
@@ -902,6 +892,67 @@ app_get_cpu_socket_id(uint32_t pmd_id)
        return (status != SOCKET_ID_ANY) ? status : 0;
 }
 
+static inline int
+app_link_rss_enabled(struct app_link_params *cp)
+{
+       return (cp->n_rss_qs) ? 1 : 0;
+}
+
+static void
+app_link_rss_setup(struct app_link_params *cp)
+{
+       struct rte_eth_dev_info dev_info;
+       struct rte_eth_rss_reta_entry64 reta_conf[APP_RETA_SIZE_MAX];
+       uint32_t i;
+       int status;
+
+    /* Get RETA size */
+       memset(&dev_info, 0, sizeof(dev_info));
+       rte_eth_dev_info_get(cp->pmd_id, &dev_info);
+
+       if (dev_info.reta_size == 0)
+               rte_panic("%s (%u): RSS setup error (null RETA size)\n",
+                       cp->name, cp->pmd_id);
+
+       if (dev_info.reta_size > ETH_RSS_RETA_SIZE_512)
+               rte_panic("%s (%u): RSS setup error (RETA size too big)\n",
+                       cp->name, cp->pmd_id);
+
+       /* Setup RETA contents */
+       memset(reta_conf, 0, sizeof(reta_conf));
+
+       for (i = 0; i < dev_info.reta_size; i++)
+               reta_conf[i / RTE_RETA_GROUP_SIZE].mask = UINT64_MAX;
+
+       for (i = 0; i < dev_info.reta_size; i++) {
+               uint32_t reta_id = i / RTE_RETA_GROUP_SIZE;
+               uint32_t reta_pos = i % RTE_RETA_GROUP_SIZE;
+               uint32_t rss_qs_pos = i % cp->n_rss_qs;
+
+               reta_conf[reta_id].reta[reta_pos] =
+                       (uint16_t) cp->rss_qs[rss_qs_pos];
+       }
+
+       /* RETA update */
+       status = rte_eth_dev_rss_reta_update(cp->pmd_id,
+               reta_conf,
+               dev_info.reta_size);
+       if (status != 0)
+               rte_panic("%s (%u): RSS setup error (RETA update failed)\n",
+                       cp->name, cp->pmd_id);
+}
+
+static void
+app_init_link_set_config(struct app_link_params *p)
+{
+       if (p->n_rss_qs) {
+               p->conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
+               p->conf.rx_adv_conf.rss_conf.rss_hf = p->rss_proto_ipv4 |
+                       p->rss_proto_ipv6 |
+                       p->rss_proto_l2;
+       }
+}
+
 static void
 app_init_link(struct app_params *app)
 {
@@ -917,6 +968,7 @@ app_init_link(struct app_params *app)
                sscanf(p_link->name, "LINK%" PRIu32, &link_id);
                n_hwq_in = app_link_get_n_rxq(app, p_link);
                n_hwq_out = app_link_get_n_txq(app, p_link);
+               app_init_link_set_config(p_link);
 
                APP_LOG(app, HIGH, "Initializing %s (%" PRIu32") "
                        "(%" PRIu32 " RXQ, %" PRIu32 " TXQ) ...",
@@ -947,16 +999,30 @@ app_init_link(struct app_params *app)
                        struct app_pktq_hwq_in_params *p_rxq =
                                &app->hwq_in_params[j];
                        uint32_t rxq_link_id, rxq_queue_id;
+                       uint16_t nb_rxd = p_rxq->size;
 
                        sscanf(p_rxq->name, "RXQ%" PRIu32 ".%" PRIu32,
                                &rxq_link_id, &rxq_queue_id);
                        if (rxq_link_id != link_id)
                                continue;
 
+                       status = rte_eth_dev_adjust_nb_rx_tx_desc(
+                               p_link->pmd_id,
+                               &nb_rxd,
+                               NULL);
+                       if (status < 0)
+                               rte_panic("%s (%" PRIu32 "): "
+                                       "%s adjust number of Rx descriptors "
+                                       "error (%" PRId32 ")\n",
+                                       p_link->name,
+                                       p_link->pmd_id,
+                                       p_rxq->name,
+                                       status);
+
                        status = rte_eth_rx_queue_setup(
                                p_link->pmd_id,
                                rxq_queue_id,
-                               p_rxq->size,
+                               nb_rxd,
                                app_get_cpu_socket_id(p_link->pmd_id),
                                &p_rxq->conf,
                                app->mempool[p_rxq->mempool_id]);
@@ -974,16 +1040,30 @@ app_init_link(struct app_params *app)
                        struct app_pktq_hwq_out_params *p_txq =
                                &app->hwq_out_params[j];
                        uint32_t txq_link_id, txq_queue_id;
+                       uint16_t nb_txd = p_txq->size;
 
                        sscanf(p_txq->name, "TXQ%" PRIu32 ".%" PRIu32,
                                &txq_link_id, &txq_queue_id);
                        if (txq_link_id != link_id)
                                continue;
 
+                       status = rte_eth_dev_adjust_nb_rx_tx_desc(
+                               p_link->pmd_id,
+                               NULL,
+                               &nb_txd);
+                       if (status < 0)
+                               rte_panic("%s (%" PRIu32 "): "
+                                       "%s adjust number of Tx descriptors "
+                                       "error (%" PRId32 ")\n",
+                                       p_link->name,
+                                       p_link->pmd_id,
+                                       p_txq->name,
+                                       status);
+
                        status = rte_eth_tx_queue_setup(
                                p_link->pmd_id,
                                txq_queue_id,
-                               p_txq->size,
+                               nb_txd,
                                app_get_cpu_socket_id(p_link->pmd_id),
                                &p_txq->conf);
                        if (status < 0)
@@ -1001,9 +1081,13 @@ app_init_link(struct app_params *app)
                        rte_panic("Cannot start %s (error %" PRId32 ")\n",
                                p_link->name, status);
 
-               /* LINK UP */
+               /* LINK FILTERS */
                app_link_set_arp_filter(app, p_link);
                app_link_set_tcp_syn_filter(app, p_link);
+               if (app_link_rss_enabled(p_link))
+                       app_link_rss_setup(p_link);
+
+               /* LINK UP */
                app_link_up_internal(app, p_link);
        }
 
@@ -1108,6 +1192,149 @@ app_init_tm(struct app_params *app)
        }
 }
 
+#ifndef RTE_EXEC_ENV_LINUXAPP
+static void
+app_init_tap(struct app_params *app) {
+       if (app->n_pktq_tap == 0)
+               return;
+
+       rte_panic("TAP device not supported.\n");
+}
+#else
+static void
+app_init_tap(struct app_params *app)
+{
+       uint32_t i;
+
+       for (i = 0; i < app->n_pktq_tap; i++) {
+               struct app_pktq_tap_params *p_tap = &app->tap_params[i];
+               struct ifreq ifr;
+               int fd, status;
+
+               APP_LOG(app, HIGH, "Initializing %s ...", p_tap->name);
+
+               fd = open("/dev/net/tun", O_RDWR | O_NONBLOCK);
+               if (fd < 0)
+                       rte_panic("Cannot open file /dev/net/tun\n");
+
+               memset(&ifr, 0, sizeof(ifr));
+               ifr.ifr_flags = IFF_TAP | IFF_NO_PI; /* No packet information */
+               snprintf(ifr.ifr_name, IFNAMSIZ, "%s", p_tap->name);
+
+               status = ioctl(fd, TUNSETIFF, (void *) &ifr);
+               if (status < 0)
+                       rte_panic("TAP setup error\n");
+
+               app->tap[i] = fd;
+       }
+}
+#endif
+
+#ifdef RTE_LIBRTE_KNI
+static int
+kni_config_network_interface(uint16_t port_id, uint8_t if_up) {
+       int ret = 0;
+
+       if (port_id >= rte_eth_dev_count())
+               return -EINVAL;
+
+       ret = (if_up) ?
+               rte_eth_dev_set_link_up(port_id) :
+               rte_eth_dev_set_link_down(port_id);
+
+       return ret;
+}
+
+static int
+kni_change_mtu(uint16_t port_id, unsigned int new_mtu) {
+       int ret;
+
+       if (port_id >= rte_eth_dev_count())
+               return -EINVAL;
+
+       if (new_mtu > ETHER_MAX_LEN)
+               return -EINVAL;
+
+       /* Set new MTU */
+       ret = rte_eth_dev_set_mtu(port_id, new_mtu);
+       if (ret < 0)
+               return ret;
+
+       return 0;
+}
+#endif /* RTE_LIBRTE_KNI */
+
+#ifndef RTE_LIBRTE_KNI
+static void
+app_init_kni(struct app_params *app) {
+       if (app->n_pktq_kni == 0)
+               return;
+
+       rte_panic("Can not init KNI without librte_kni support.\n");
+}
+#else
+static void
+app_init_kni(struct app_params *app) {
+       uint32_t i;
+
+       if (app->n_pktq_kni == 0)
+               return;
+
+       rte_kni_init(app->n_pktq_kni);
+
+       for (i = 0; i < app->n_pktq_kni; i++) {
+               struct app_pktq_kni_params *p_kni = &app->kni_params[i];
+               struct app_link_params *p_link;
+               struct rte_eth_dev_info dev_info;
+               struct app_mempool_params *mempool_params;
+               struct rte_mempool *mempool;
+               struct rte_kni_conf conf;
+               struct rte_kni_ops ops;
+
+               /* LINK */
+               p_link = app_get_link_for_kni(app, p_kni);
+               memset(&dev_info, 0, sizeof(dev_info));
+               rte_eth_dev_info_get(p_link->pmd_id, &dev_info);
+
+               /* MEMPOOL */
+               mempool_params = &app->mempool_params[p_kni->mempool_id];
+               mempool = app->mempool[p_kni->mempool_id];
+
+               /* KNI */
+               memset(&conf, 0, sizeof(conf));
+               snprintf(conf.name, RTE_KNI_NAMESIZE, "%s", p_kni->name);
+               conf.force_bind = p_kni->force_bind;
+               if (conf.force_bind) {
+                       int lcore_id;
+
+                       lcore_id = cpu_core_map_get_lcore_id(app->core_map,
+                               p_kni->socket_id,
+                               p_kni->core_id,
+                               p_kni->hyper_th_id);
+
+                       if (lcore_id < 0)
+                               rte_panic("%s invalid CPU core\n", p_kni->name);
+
+                       conf.core_id = (uint32_t) lcore_id;
+               }
+               conf.group_id = p_link->pmd_id;
+               conf.mbuf_size = mempool_params->buffer_size;
+               conf.addr = dev_info.pci_dev->addr;
+               conf.id = dev_info.pci_dev->id;
+
+               memset(&ops, 0, sizeof(ops));
+               ops.port_id = (uint8_t) p_link->pmd_id;
+               ops.change_mtu = kni_change_mtu;
+               ops.config_network_if = kni_config_network_interface;
+
+               APP_LOG(app, HIGH, "Initializing %s ...", p_kni->name);
+               app->kni[i] = rte_kni_alloc(mempool, &conf, &ops);
+               if (!app->kni[i])
+                       rte_panic("%s init error\n", p_kni->name);
+       }
+}
+#endif /* RTE_LIBRTE_KNI */
+
 static void
 app_init_msgq(struct app_params *app)
 {
@@ -1128,15 +1355,16 @@ app_init_msgq(struct app_params *app)
        }
 }
 
-static void app_pipeline_params_get(struct app_params *app,
+void app_pipeline_params_get(struct app_params *app,
        struct app_pipeline_params *p_in,
        struct pipeline_params *p_out)
 {
        uint32_t i;
-       uint32_t mempool_id;
 
        snprintf(p_out->name, PIPELINE_NAME_SIZE, "%s", p_in->name);
 
+       snprintf(p_out->type, PIPELINE_TYPE_SIZE, "%s", p_in->type);
+
        p_out->socket_id = (int) p_in->socket_id;
 
        p_out->log_level = app->log_level;
@@ -1212,34 +1440,53 @@ static void app_pipeline_params_get(struct app_params *app,
                        break;
                }
                case APP_PKTQ_IN_TM:
+               {
                        out->type = PIPELINE_PORT_IN_SCHED_READER;
                        out->params.sched.sched = app->tm[in->id];
                        out->burst_size = app->tm_params[in->id].burst_read;
                        break;
+               }
+#ifdef RTE_EXEC_ENV_LINUXAPP
+               case APP_PKTQ_IN_TAP:
+               {
+                       struct app_pktq_tap_params *tap_params =
+                               &app->tap_params[in->id];
+                       struct app_mempool_params *mempool_params =
+                               &app->mempool_params[tap_params->mempool_id];
+                       struct rte_mempool *mempool =
+                               app->mempool[tap_params->mempool_id];
+
+                       out->type = PIPELINE_PORT_IN_FD_READER;
+                       out->params.fd.fd = app->tap[in->id];
+                       out->params.fd.mtu = mempool_params->buffer_size;
+                       out->params.fd.mempool = mempool;
+                       out->burst_size = app->tap_params[in->id].burst_read;
+                       break;
+               }
+#endif
+#ifdef RTE_LIBRTE_KNI
+               case APP_PKTQ_IN_KNI:
+               {
+                       out->type = PIPELINE_PORT_IN_KNI_READER;
+                       out->params.kni.kni = app->kni[in->id];
+                       out->burst_size = app->kni_params[in->id].burst_read;
+                       break;
+               }
+#endif /* RTE_LIBRTE_KNI */
                case APP_PKTQ_IN_SOURCE:
-                       mempool_id = app->source_params[in->id].mempool_id;
+               {
+                       uint32_t mempool_id =
+                               app->source_params[in->id].mempool_id;
+
                        out->type = PIPELINE_PORT_IN_SOURCE;
                        out->params.source.mempool = app->mempool[mempool_id];
                        out->burst_size = app->source_params[in->id].burst;
-
-#ifdef RTE_NEXT_ABI
-                       if (app->source_params[in->id].file_name
-                               != NULL) {
-                               out->params.source.file_name = strdup(
-                                       app->source_params[in->id].
-                                       file_name);
-                               if (out->params.source.file_name == NULL) {
-                                       out->params.source.
-                                               n_bytes_per_pkt = 0;
-                                       break;
-                               }
-                               out->params.source.n_bytes_per_pkt =
-                                       app->source_params[in->id].
-                                       n_bytes_per_pkt;
-                       }
-#endif
-
+                       out->params.source.file_name =
+                               app->source_params[in->id].file_name;
+                       out->params.source.n_bytes_per_pkt =
+                               app->source_params[in->id].n_bytes_per_pkt;
                        break;
+               }
                default:
                        break;
                }
@@ -1350,7 +1597,8 @@ static void app_pipeline_params_get(struct app_params *app,
                        }
                        break;
                }
-               case APP_PKTQ_OUT_TM: {
+               case APP_PKTQ_OUT_TM:
+               {
                        struct rte_port_sched_writer_params *params =
                                &out->params.sched;
 
@@ -1360,24 +1608,58 @@ static void app_pipeline_params_get(struct app_params *app,
                                app->tm_params[in->id].burst_write;
                        break;
                }
-               case APP_PKTQ_OUT_SINK:
-                       out->type = PIPELINE_PORT_OUT_SINK;
-                       if (app->sink_params[in->id].file_name != NULL) {
-                               out->params.sink.file_name = strdup(
-                                       app->sink_params[in->id].
-                                       file_name);
-                               if (out->params.sink.file_name == NULL) {
-                                       out->params.sink.max_n_pkts = 0;
-                                       break;
-                               }
-                               out->params.sink.max_n_pkts =
-                                       app->sink_params[in->id].
-                                       n_pkts_to_dump;
+#ifdef RTE_EXEC_ENV_LINUXAPP
+               case APP_PKTQ_OUT_TAP:
+               {
+                       struct rte_port_fd_writer_params *params =
+                               &out->params.fd;
+
+                       out->type = PIPELINE_PORT_OUT_FD_WRITER;
+                       params->fd = app->tap[in->id];
+                       params->tx_burst_sz =
+                               app->tap_params[in->id].burst_write;
+                       break;
+               }
+#endif
+#ifdef RTE_LIBRTE_KNI
+               case APP_PKTQ_OUT_KNI:
+               {
+                       struct app_pktq_kni_params *p_kni =
+                               &app->kni_params[in->id];
+
+                       if (p_kni->dropless == 0) {
+                               struct rte_port_kni_writer_params *params =
+                                       &out->params.kni;
+
+                               out->type = PIPELINE_PORT_OUT_KNI_WRITER;
+                               params->kni = app->kni[in->id];
+                               params->tx_burst_sz =
+                                       app->kni_params[in->id].burst_write;
                        } else {
-                               out->params.sink.file_name = NULL;
-                               out->params.sink.max_n_pkts = 0;
+                               struct rte_port_kni_writer_nodrop_params
+                                       *params = &out->params.kni_nodrop;
+
+                               out->type = PIPELINE_PORT_OUT_KNI_WRITER_NODROP;
+                               params->kni = app->kni[in->id];
+                               params->tx_burst_sz =
+                                       app->kni_params[in->id].burst_write;
+                               params->n_retries =
+                                       app->kni_params[in->id].n_retries;
                        }
                        break;
+               }
+#endif /* RTE_LIBRTE_KNI */
+               case APP_PKTQ_OUT_SINK:
+               {
+                       out->type = PIPELINE_PORT_OUT_SINK;
+                       out->params.sink.file_name =
+                               app->sink_params[in->id].file_name;
+                       out->params.sink.max_n_pkts =
+                               app->sink_params[in->id].
+                               n_pkts_to_dump;
+
+                       break;
+               }
                default:
                        break;
                }
@@ -1448,6 +1730,27 @@ app_init_pipelines(struct app_params *app)
        }
 }
 
+static void
+app_post_init_pipelines(struct app_params *app)
+{
+       uint32_t p_id;
+
+       for (p_id = 0; p_id < app->n_pipelines; p_id++) {
+               struct app_pipeline_params *params =
+                       &app->pipeline_params[p_id];
+               struct app_pipeline_data *data = &app->pipeline_data[p_id];
+               int status;
+
+               if (data->ptype->fe_ops->f_post_init == NULL)
+                       continue;
+
+               status = data->ptype->fe_ops->f_post_init(data->fe);
+               if (status)
+                       rte_panic("Pipeline instance \"%s\" front-end "
+                               "post-init error\n", params->name);
+       }
+}
+
 static void
 app_init_threads(struct app_params *app)
 {
@@ -1534,6 +1837,8 @@ int app_init(struct app_params *app)
        app_init_link(app);
        app_init_swq(app);
        app_init_tm(app);
+       app_init_tap(app);
+       app_init_kni(app);
        app_init_msgq(app);
 
        app_pipeline_common_cmd_push(app);
@@ -1551,6 +1856,13 @@ int app_init(struct app_params *app)
        return 0;
 }
 
+int app_post_init(struct app_params *app)
+{
+       app_post_init_pipelines(app);
+
+       return 0;
+}
+
 static int
 app_pipeline_type_cmd_push(struct app_params *app,
        struct pipeline_type *ptype)