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 <deepak.s@linux.intel.com>

1 files changed, 66 insertions, 0 deletions

diff --git a/VNFs/DPPD-PROX/thread_nop.c b/VNFs/DPPD-PROX/thread_nop.c
new file mode 100644
index 00000000..ba30dc61
--- /dev/null
+++ b/VNFs/DPPD-PROX/thread_nop.c
@@ -0,0 +1,66 @@
+/*
+// 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 <rte_cycles.h>
+
+#include "log.h"
+#include "lconf.h"
+#include "thread_nop.h"
+#include "handle_nop.h"
+#include "stats.h"
+#include "lconf.h"
+#include "defines.h"
+
+int thread_nop(struct lcore_cfg *lconf)
+{
+	struct task_base *tasks[MAX_TASKS_PER_CORE];
+	struct rte_mbuf **mbufs;
+	uint64_t cur_tsc = rte_rdtsc();
+	uint64_t term_tsc = cur_tsc;
+	uint64_t drain_tsc = cur_tsc;
+	uint8_t n_tasks_run = 0;
+
+	for (;;) {
+		cur_tsc = rte_rdtsc();
+		if (cur_tsc > term_tsc) {
+			term_tsc = cur_tsc + TERM_TIMEOUT;
+			if (lconf_is_req(lconf) && lconf_do_flags(lconf)) {
+				n_tasks_run = lconf->n_tasks_run;
+
+				if (!n_tasks_run)
+					return 0;
+				for (int i = 0; i < lconf->n_tasks_run; ++i) {
+					tasks[i] = lconf->tasks_run[i];
+				}
+			}
+		}
+		if (cur_tsc > drain_tsc) {
+			drain_tsc = cur_tsc + DRAIN_TIMEOUT;
+			lconf_flush_all_queues(lconf);
+		}
+
+		for (uint8_t task_id = 0; task_id < n_tasks_run; ++task_id) {
+			struct task_base *t = tasks[task_id];
+			uint16_t nb_rx = t->rx_pkt(t, &mbufs);
+
+			if (likely(nb_rx)) {
+				handle_nop_bulk(t, mbufs, nb_rx);
+			}
+		}
+	}
+
+	return 0;
+}