[dpdk-dev] [PATCH v2 4/9] examples/ipsec-secgw: add stats interval argument

[Radu Nicolau]

Add -t for stats screen update interval, disabled by default.

Signed-off-by: Radu Nicolau <radu.nicolau at intel.com>
---
 doc/guides/sample_app_ug/ipsec_secgw.rst |  5 ++++
 examples/ipsec-secgw/ipsec-secgw.c       | 29 ++++++++++++++++--------
 examples/ipsec-secgw/ipsec-secgw.h       | 15 ------------
 3 files changed, 25 insertions(+), 24 deletions(-)

diff --git a/doc/guides/sample_app_ug/ipsec_secgw.rst b/doc/guides/sample_app_ug/ipsec_secgw.rst
index 20bc1e6bc4..0d55e74022 100644
--- a/doc/guides/sample_app_ug/ipsec_secgw.rst
+++ b/doc/guides/sample_app_ug/ipsec_secgw.rst
@@ -127,6 +127,7 @@ The application has a number of command line options::
                         -p PORTMASK -P -u PORTMASK -j FRAMESIZE
                         -l -w REPLAY_WINDOW_SIZE -e -a
                         -c SAD_CACHE_SIZE
+                        -t STATISTICS_INTERVAL
                         -s NUMBER_OF_MBUFS_IN_PACKET_POOL
                         -f CONFIG_FILE_PATH
                         --config (port,queue,lcore)[,(port,queue,lcore)]
@@ -176,6 +177,10 @@ Where:
     Zero value disables cache.
     Default value: 128.
 
+*   ``-t``: specifies the statistics screen update interval. If set to zero or
+    omitted statistics screen is disabled.
+    Default value: 0.
+
 *   ``-s``: sets number of mbufs in packet pool, if not provided number of mbufs
     will be calculated based on number of cores, eth ports and crypto queues.
 
diff --git a/examples/ipsec-secgw/ipsec-secgw.c b/examples/ipsec-secgw/ipsec-secgw.c
index 265fff4bef..60b25be872 100644
--- a/examples/ipsec-secgw/ipsec-secgw.c
+++ b/examples/ipsec-secgw/ipsec-secgw.c
@@ -181,6 +181,7 @@ static uint32_t frag_tbl_sz;
 static uint32_t frame_buf_size = RTE_MBUF_DEFAULT_BUF_SIZE;
 static uint32_t mtu_size = RTE_ETHER_MTU;
 static uint64_t frag_ttl_ns = MAX_FRAG_TTL_NS;
+static uint32_t stats_interval;
 
 /* application wide librte_ipsec/SA parameters */
 struct app_sa_prm app_sa_prm = {
@@ -292,7 +293,6 @@ adjust_ipv6_pktlen(struct rte_mbuf *m, const struct rte_ipv6_hdr *iph,
 	}
 }
 
-#if (STATS_INTERVAL > 0)
 
 /* Print out statistics on packet distribution */
 static void
@@ -352,9 +352,8 @@ print_stats_cb(__rte_unused void *param)
 		   total_packets_dropped);
 	printf("\n====================================================\n");
 
-	rte_eal_alarm_set(STATS_INTERVAL * US_PER_S, print_stats_cb, NULL);
+	rte_eal_alarm_set(stats_interval * US_PER_S, print_stats_cb, NULL);
 }
-#endif /* STATS_INTERVAL */
 
 static inline void
 prepare_one_packet(struct rte_mbuf *pkt, struct ipsec_traffic *t)
@@ -1435,6 +1434,7 @@ print_usage(const char *prgname)
 		" [-e]"
 		" [-a]"
 		" [-c]"
+		" [-t STATS_INTERVAL]"
 		" [-s NUMBER_OF_MBUFS_IN_PKT_POOL]"
 		" -f CONFIG_FILE"
 		" --config (port,queue,lcore)[,(port,queue,lcore)]"
@@ -1459,6 +1459,8 @@ print_usage(const char *prgname)
 		"  -a enables SA SQN atomic behaviour\n"
 		"  -c specifies inbound SAD cache size,\n"
 		"     zero value disables the cache (default value: 128)\n"
+		"  -t specifies statistics screen update interval,\n"
+		"     zero disables statistics screen (default value: 0)\n"
 		"  -s number of mbufs in packet pool, if not specified number\n"
 		"     of mbufs will be calculated based on number of cores,\n"
 		"     ports and crypto queues\n"
@@ -1666,7 +1668,7 @@ parse_args(int32_t argc, char **argv, struct eh_conf *eh_conf)
 
 	argvopt = argv;
 
-	while ((opt = getopt_long(argc, argvopt, "aelp:Pu:f:j:w:c:s:",
+	while ((opt = getopt_long(argc, argvopt, "aelp:Pu:f:j:w:c:t:s:",
 				lgopts, &option_index)) != EOF) {
 
 		switch (opt) {
@@ -1747,6 +1749,15 @@ parse_args(int32_t argc, char **argv, struct eh_conf *eh_conf)
 			}
 			app_sa_prm.cache_sz = ret;
 			break;
+		case 't':
+			ret = parse_decimal(optarg);
+			if (ret < 0) {
+				printf("Invalid interval value: %s\n", optarg);
+				print_usage(prgname);
+				return -1;
+			}
+			stats_interval = ret;
+			break;
 		case CMD_LINE_OPT_CONFIG_NUM:
 			ret = parse_config(optarg);
 			if (ret) {
@@ -3350,11 +3361,11 @@ main(int32_t argc, char **argv)
 
 	check_all_ports_link_status(enabled_port_mask);
 
-#if (STATS_INTERVAL > 0)
-	rte_eal_alarm_set(STATS_INTERVAL * US_PER_S, print_stats_cb, NULL);
-#else
-	RTE_LOG(INFO, IPSEC, "Stats display disabled\n");
-#endif /* STATS_INTERVAL */
+	if (stats_interval > 0)
+		rte_eal_alarm_set(stats_interval * US_PER_S,
+				print_stats_cb, NULL);
+	else
+		RTE_LOG(INFO, IPSEC, "Stats display disabled\n");
 
 	/* launch per-lcore init on every lcore */
 	rte_eal_mp_remote_launch(ipsec_launch_one_lcore, eh_conf, CALL_MAIN);
diff --git a/examples/ipsec-secgw/ipsec-secgw.h b/examples/ipsec-secgw/ipsec-secgw.h
index f3082a1037..de9f382742 100644
--- a/examples/ipsec-secgw/ipsec-secgw.h
+++ b/examples/ipsec-secgw/ipsec-secgw.h
@@ -6,9 +6,6 @@
 
 #include <stdbool.h>
 
-#ifndef STATS_INTERVAL
-#define STATS_INTERVAL 0
-#endif
 
 #define NB_SOCKETS 4
 
@@ -144,38 +141,26 @@ is_unprotected_port(uint16_t port_id)
 static inline void
 core_stats_update_rx(int n)
 {
-#if (STATS_INTERVAL > 0)
 	int lcore_id = rte_lcore_id();
 	core_statistics[lcore_id].rx += n;
 	core_statistics[lcore_id].rx_call++;
 	if (n == MAX_PKT_BURST)
 		core_statistics[lcore_id].burst_rx += n;
-#else
-	RTE_SET_USED(n);
-#endif /* STATS_INTERVAL */
 }
 
 static inline void
 core_stats_update_tx(int n)
 {
-#if (STATS_INTERVAL > 0)
 	int lcore_id = rte_lcore_id();
 	core_statistics[lcore_id].tx += n;
 	core_statistics[lcore_id].tx_call++;
-#else
-	RTE_SET_USED(n);
-#endif /* STATS_INTERVAL */
 }
 
 static inline void
 core_stats_update_drop(int n)
 {
-#if (STATS_INTERVAL > 0)
 	int lcore_id = rte_lcore_id();
 	core_statistics[lcore_id].dropped += n;
-#else
-	RTE_SET_USED(n);
-#endif /* STATS_INTERVAL */
 }
 
 /* helper routine to free bulk of packets */
-- 
2.25.1