From 7286b2518ec8e4398b512ce95def9166a7af2e4a Mon Sep 17 00:00:00 2001 From: Deepak S Date: Thu, 13 Jul 2017 21:26:50 -0700 Subject: Adding PROX(Packet pROcessing eXecution engine) VNF to sampleVNF JIRA: SAMPLEVNF-55 PROX is a DPDK-based application implementing Telco use-cases such as a simplified BRAS/BNG, light-weight AFTR... It also allows configuring finer grained network functions like QoS, Routing, load-balancing... (We are moving PROX version v039 to sampleVNF https://01.org/intel-data-plane-performance-demonstrators/prox-overview) Change-Id: Ia3cb02cf0e49ac5596e922c197ff7e010293d033 Signed-off-by: Deepak S --- VNFs/DPPD-PROX/handle_dump.c | 131 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 131 insertions(+) create mode 100644 VNFs/DPPD-PROX/handle_dump.c (limited to 'VNFs/DPPD-PROX/handle_dump.c') diff --git a/VNFs/DPPD-PROX/handle_dump.c b/VNFs/DPPD-PROX/handle_dump.c new file mode 100644 index 00000000..c35a6e9e --- /dev/null +++ b/VNFs/DPPD-PROX/handle_dump.c @@ -0,0 +1,131 @@ +/* +// Copyright (c) 2010-2017 Intel Corporation +// +// 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 "prox_malloc.h" +#include "clock.h" +#include "log.h" +#include "lconf.h" +#include "task_init.h" +#include "task_base.h" +#include "stats.h" + +struct task_dump { + struct task_base base; + uint32_t n_mbufs; + struct rte_mbuf **mbufs; + uint32_t n_pkts; + char pcap_file[128]; +}; + +static uint16_t buffer_packets(struct task_dump *task, struct rte_mbuf **mbufs, uint16_t n_pkts) +{ + uint16_t j = 0; + + if (task->n_mbufs == task->n_pkts) + return 0; + + for (j = 0; j < n_pkts && task->n_mbufs < task->n_pkts; ++j) { + mbufs[j]->udata64 = rte_rdtsc(); + task->mbufs[task->n_mbufs++] = mbufs[j]; + } + + return j; +} + +static int handle_dump_bulk(struct task_base *tbase, struct rte_mbuf **mbufs, uint16_t n_pkts) +{ + struct task_dump *task = (struct task_dump *)tbase; + const uint16_t ofs = buffer_packets(task, mbufs, n_pkts); + + for (uint16_t j = ofs; j < n_pkts; ++j) + rte_pktmbuf_free(mbufs[j]); + TASK_STATS_ADD_DROP_DISCARD(&tbase->aux->stats, n_pkts - ofs); + return n_pkts; +} + +static void init_task_dump(struct task_base *tbase, __attribute__((unused)) struct task_args *targ) +{ + struct task_dump *task = (struct task_dump *)tbase; + const int socket_id = rte_lcore_to_socket_id(targ->lconf->id); + + task->mbufs = prox_zmalloc(sizeof(*task->mbufs) * targ->n_pkts, socket_id); + task->n_pkts = targ->n_pkts; + if (!strcmp(targ->pcap_file, "")) { + strcpy(targ->pcap_file, "out.pcap"); + } + strncpy(task->pcap_file, targ->pcap_file, sizeof(task->pcap_file)); +} + +static void stop(struct task_base *tbase) +{ + struct task_dump *task = (struct task_dump *)tbase; + static pcap_dumper_t *pcap_dump_handle; + pcap_t *handle; + uint32_t n_pkts = 65536; + struct pcap_pkthdr header = {{0}, 0, 0}; + static int once = 0; + char err_str[PCAP_ERRBUF_SIZE]; + const uint64_t hz = rte_get_tsc_hz(); + struct timeval tv = {0}; + uint64_t tsc, beg = 0; + + plogx_info("Dumping %d packets to '%s'\n", task->n_mbufs, task->pcap_file); + handle = pcap_open_dead(DLT_EN10MB, n_pkts); + pcap_dump_handle = pcap_dump_open(handle, task->pcap_file); + + if (task->n_mbufs) { + beg = task->mbufs[0]->udata64; + } + for (uint32_t j = 0; j < task->n_mbufs; ++j) { + tsc = task->mbufs[j]->udata64 - beg; + header.len = rte_pktmbuf_pkt_len(task->mbufs[j]); + header.caplen = header.len; + tsc_to_tv(&header.ts, tsc); + pcap_dump((unsigned char *)pcap_dump_handle, &header, rte_pktmbuf_mtod(task->mbufs[j], void *)); + } + + pcap_dump_close(pcap_dump_handle); + pcap_close(handle); + plogx_info("Dump complete, releasing mbufs\n"); + + uint32_t j = 0; + + while (j + 64 < task->n_mbufs) { + tbase->tx_pkt(tbase, &task->mbufs[j], 64, NULL); + j += 64; + } + if (j < task->n_mbufs) { + tbase->tx_pkt(tbase, &task->mbufs[j], task->n_mbufs - j, NULL); + } + task->n_mbufs = 0; +} + +static struct task_init task_init_dump = { + .mode_str = "dump", + .init = init_task_dump, + .handle = handle_dump_bulk, + .stop = stop, + .flag_features = TASK_FEATURE_ZERO_RX, + .size = sizeof(struct task_dump) +}; + +__attribute__((constructor)) static void reg_task_dump(void) +{ + reg_task(&task_init_dump); +} -- cgit 1.2.3-korg