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_read.c | 78 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 VNFs/DPPD-PROX/handle_read.c (limited to 'VNFs/DPPD-PROX/handle_read.c') diff --git a/VNFs/DPPD-PROX/handle_read.c b/VNFs/DPPD-PROX/handle_read.c new file mode 100644 index 00000000..9a06a2b1 --- /dev/null +++ b/VNFs/DPPD-PROX/handle_read.c @@ -0,0 +1,78 @@ +/* +// 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 "task_base.h" +#include "task_init.h" +#include "defines.h" +#include "prefetch.h" +#include "log.h" + +struct task_read { + struct task_base base; +}; + +static int handle_read_bulk(struct task_base *tbase, struct rte_mbuf **mbufs, uint16_t n_pkts) +{ + struct task_read *task = (struct task_read *)tbase; + uint8_t out[MAX_PKT_BURST]; + uint16_t j; + uint64_t *first; + +#ifdef PROX_PREFETCH_OFFSET + for (j = 0; j < PROX_PREFETCH_OFFSET && j < n_pkts; ++j) { + PREFETCH0(mbufs[j]); + } + for (j = 1; j < PROX_PREFETCH_OFFSET && j < n_pkts; ++j) { + PREFETCH0(rte_pktmbuf_mtod(mbufs[j - 1], void *)); + } +#endif + for (j = 0; j + PREFETCH_OFFSET < n_pkts; ++j) { +#ifdef PROX_PREFETCH_OFFSET + PREFETCH0(mbufs[j + PREFETCH_OFFSET]); + PREFETCH0(rte_pktmbuf_mtod(mbufs[j + PREFETCH_OFFSET - 1], void *)); +#endif + first = rte_pktmbuf_mtod(mbufs[j], uint64_t *); + out[j] = *first != 0? 0: OUT_DISCARD; + } +#ifdef PROX_PREFETCH_OFFSET + prefetch_nta(rte_pktmbuf_mtod(mbufs[n_pkts - 1], void *)); + for (; j < n_pkts; ++j) { + first = rte_pktmbuf_mtod(mbufs[j], uint64_t *); + out[j] = *first != 0? 0: OUT_DISCARD; + } +#endif + + return task->base.tx_pkt(&task->base, mbufs, n_pkts, out); +} + +static void init_task_read(__attribute__((unused)) struct task_base *tbase, + __attribute__((unused)) struct task_args *targ) +{ +} + +static struct task_init task_init_read = { + .mode_str = "read", + .init = init_task_read, + .handle = handle_read_bulk, + .size = sizeof(struct task_read) +}; + +__attribute__((constructor)) static void reg_task_read(void) +{ + reg_task(&task_init_read); +} -- cgit 1.2.3-korg