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, 110 insertions, 0 deletions

diff --git a/VNFs/DPPD-PROX/stats_global.c b/VNFs/DPPD-PROX/stats_global.c
new file mode 100644
index 00000000..d7529d34
--- /dev/null
+++ b/VNFs/DPPD-PROX/stats_global.c
@@ -0,0 +1,110 @@
+/*
+// 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 <string.h>
+#include <rte_cycles.h>
+#include <inttypes.h>
+
+#include "stats_global.h"
+#include "stats_port.h"
+#include "stats_task.h"
+
+struct global_stats {
+	struct global_stats_sample sample[2];
+	struct global_stats_sample beg;
+	uint8_t  started_avg;
+	uint64_t start_tsc;
+	uint64_t end_tsc;
+};
+
+extern int last_stat;
+static struct global_stats global_stats;
+
+uint64_t stats_get_last_tsc(void)
+{
+	return global_stats.sample[last_stat].tsc;
+}
+
+uint64_t stats_global_start_tsc(void)
+{
+	return global_stats.start_tsc;
+}
+
+uint64_t stats_global_beg_tsc(void)
+{
+	return global_stats.beg.tsc;
+}
+
+uint64_t stats_global_end_tsc(void)
+{
+	return global_stats.end_tsc;
+}
+
+struct global_stats_sample *stats_get_global_stats(int last)
+{
+	return &global_stats.sample[last == last_stat];
+}
+
+struct global_stats_sample *stats_get_global_stats_beg(void)
+{
+	return (global_stats.beg.tsc < global_stats.sample[last_stat].tsc)? &global_stats.beg : NULL;
+}
+
+void stats_global_reset(void)
+{
+	uint64_t now = rte_rdtsc();
+	uint64_t last_tsc = global_stats.sample[last_stat].tsc;
+	uint64_t prev_tsc = global_stats.sample[!last_stat].tsc;
+	uint64_t end_tsc = global_stats.end_tsc;
+
+	memset(&global_stats, 0, sizeof(struct global_stats));
+	global_stats.sample[last_stat].tsc = last_tsc;
+	global_stats.sample[!last_stat].tsc = prev_tsc;
+	global_stats.start_tsc = now;
+	global_stats.beg.tsc = now;
+	global_stats.end_tsc = end_tsc;
+}
+
+void stats_global_init(unsigned avg_start, unsigned duration)
+{
+	uint64_t now = rte_rdtsc();
+
+	global_stats.start_tsc = now;
+	/* + 1 for rounding */
+	tsc_hz = rte_get_tsc_hz();
+	if (duration)
+		global_stats.end_tsc = global_stats.start_tsc + (avg_start + duration + 1) * tsc_hz;
+
+	global_stats.beg.tsc = global_stats.start_tsc + avg_start * tsc_hz;
+}
+
+void stats_global_post_proc(void)
+{
+	uint64_t *rx = &global_stats.sample[last_stat].host_rx_packets;
+	uint64_t *tx = &global_stats.sample[last_stat].host_tx_packets;
+	uint64_t *tsc = &global_stats.sample[last_stat].tsc;
+
+	stats_task_get_host_rx_tx_packets(rx, tx, tsc);
+	global_stats.sample[last_stat].nics_ierrors    = stats_port_get_ierrors();
+	global_stats.sample[last_stat].nics_imissed    = stats_port_get_imissed();
+	global_stats.sample[last_stat].nics_rx_packets = stats_port_get_rx_packets();
+	global_stats.sample[last_stat].nics_tx_packets = stats_port_get_tx_packets();
+
+	if (global_stats.sample[last_stat].tsc > global_stats.beg.tsc && !global_stats.started_avg) {
+		global_stats.started_avg = 1;
+		global_stats.beg = global_stats.sample[last_stat];
+	}
+}