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From: Dan Gora <dg@adax.com>
To: dev@dpdk.org
Cc: Igor Ryzhov <iryzhov@nfware.com>,
	Stephen Hemminger <stephen@networkplumber.org>,
	Dan Gora <dg@adax.com>, Ferruh Yigit <ferruh.yigit@intel.com>
Subject: [dpdk-dev] [PATCH v2 3/5] examples/kni: monitor and update link status continually
Date: Wed, 19 Sep 2018 16:55:47 -0300	[thread overview]
Message-ID: <20180919195549.5585-4-dg@adax.com> (raw)
In-Reply-To: <20180919195549.5585-1-dg@adax.com>

Update KNI example to continuously monitor the Ethernet link status of
the physical link and update the carrier status of the corresponding
interfaces with rte_kni_update_link().

Signed-off-by: Dan Gora <dg@adax.com>
---
 examples/kni/Makefile |  2 ++
 examples/kni/main.c   | 82 +++++++++++++++++++++----------------------
 2 files changed, 43 insertions(+), 41 deletions(-)

diff --git a/examples/kni/Makefile b/examples/kni/Makefile
index 7e19d2e2a..dd90d7d73 100644
--- a/examples/kni/Makefile
+++ b/examples/kni/Makefile
@@ -20,6 +20,7 @@ static: build/$(APP)-static
 
 PC_FILE := $(shell pkg-config --path libdpdk)
 CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
+CFLAGS += -DALLOW_EXPERIMENTAL_API
 LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
 LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
 
@@ -54,6 +55,7 @@ please change the definition of the RTE_TARGET environment variable)
 endif
 
 CFLAGS += -O3
+CFLAGS += -DALLOW_EXPERIMENTAL_API
 CFLAGS += $(WERROR_FLAGS)
 
 include $(RTE_SDK)/mk/rte.extapp.mk
diff --git a/examples/kni/main.c b/examples/kni/main.c
index 80c401c51..8c3d3839e 100644
--- a/examples/kni/main.c
+++ b/examples/kni/main.c
@@ -107,6 +107,8 @@ static uint32_t ports_mask = 0;
 /* Ports set in promiscuous mode off by default. */
 static int promiscuous_on = 0;
 
+static int kni_running;
+
 /* Structure type for recording kni interface specific stats */
 struct kni_interface_stats {
 	/* number of pkts received from NIC, and sent to KNI */
@@ -620,58 +622,45 @@ init_port(uint16_t port)
 }
 
 /* Check the link status of all ports in up to 9s, and print them finally */
-static void
-check_all_ports_link_status(uint32_t port_mask)
+static void *
+check_all_ports_link_status(void *arg)
 {
 #define CHECK_INTERVAL 100 /* 100ms */
 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
 	uint16_t portid;
-	uint8_t count, all_ports_up, print_flag = 0;
 	struct rte_eth_link link;
+	const char *name;
+	char cmd[64];
+	unsigned int i;
+	struct kni_port_params **p = kni_port_params_array;
+	(void) arg;
+
+	RTE_ETH_FOREACH_DEV(portid) {
+		for (i = 0; i < p[portid]->nb_kni; i++) {
+			name = rte_kni_get_name(p[portid]->kni[i]);
+			snprintf(cmd, sizeof(cmd),
+					"/sbin/ifconfig %s up", name);
+			RTE_LOG(INFO, APP,
+					"Marking interface %s 'up'\n", name);
+			if (system(cmd) == -1)
+				RTE_LOG(ERR, APP,
+				  "Error: Failed to mark interface %s 'up'\n",
+						name);
+		}
+	}
 
-	printf("\nChecking link status\n");
-	fflush(stdout);
-	for (count = 0; count <= MAX_CHECK_TIME; count++) {
-		all_ports_up = 1;
+	while (kni_running) {
+		rte_delay_ms(CHECK_INTERVAL);
 		RTE_ETH_FOREACH_DEV(portid) {
-			if ((port_mask & (1 << portid)) == 0)
+			if ((ports_mask & (1 << portid)) == 0)
 				continue;
 			memset(&link, 0, sizeof(link));
 			rte_eth_link_get_nowait(portid, &link);
-			/* print link status if flag set */
-			if (print_flag == 1) {
-				if (link.link_status)
-					printf(
-					"Port%d Link Up - speed %uMbps - %s\n",
-						portid, link.link_speed,
-				(link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
-					("full-duplex") : ("half-duplex\n"));
-				else
-					printf("Port %d Link Down\n", portid);
-				continue;
-			}
-			/* clear all_ports_up flag if any link down */
-			if (link.link_status == ETH_LINK_DOWN) {
-				all_ports_up = 0;
-				break;
-			}
-		}
-		/* after finally printing all link status, get out */
-		if (print_flag == 1)
-			break;
-
-		if (all_ports_up == 0) {
-			printf(".");
-			fflush(stdout);
-			rte_delay_ms(CHECK_INTERVAL);
-		}
-
-		/* set the print_flag if all ports up or timeout */
-		if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
-			print_flag = 1;
-			printf("done\n");
+			for (i = 0; i < p[portid]->nb_kni; i++)
+				rte_kni_update_link(p[portid]->kni[i], &link);
 		}
 	}
+	return NULL;
 }
 
 /* Callback for request of changing MTU */
@@ -893,6 +882,8 @@ main(int argc, char** argv)
 	int ret;
 	uint16_t nb_sys_ports, port;
 	unsigned i;
+	void *retval;
+	pthread_t kni_link_tid;
 
 	/* Associate signal_hanlder function with USR signals */
 	signal(SIGUSR1, signal_handler);
@@ -947,7 +938,14 @@ main(int argc, char** argv)
 
 		kni_alloc(port);
 	}
-	check_all_ports_link_status(ports_mask);
+
+	kni_running = 1;
+	ret = rte_ctrl_thread_create(&kni_link_tid,
+				     "KNI link status check", NULL,
+				     check_all_ports_link_status, NULL);
+	if (ret < 0)
+		rte_exit(EXIT_FAILURE,
+			"Could not create link status thread!\n");
 
 	/* Launch per-lcore function on every lcore */
 	rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
@@ -955,6 +953,8 @@ main(int argc, char** argv)
 		if (rte_eal_wait_lcore(i) < 0)
 			return -1;
 	}
+	kni_running = 0;
+	pthread_join(kni_link_tid, &retval);
 
 	/* Release resources */
 	RTE_ETH_FOREACH_DEV(port) {
-- 
2.19.0

  parent reply	other threads:[~2018-09-19 19:56 UTC|newest]

Thread overview: 92+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-11 23:29 [dpdk-dev] [PATCH 0/2] kni: add API to set link status on kernel interface Dan Gora
2018-09-11 23:29 ` [dpdk-dev] [PATCH 1/2] " Dan Gora
2018-09-18 16:54   ` Ferruh Yigit
2018-09-18 17:41     ` Dan Gora
2018-09-11 23:29 ` [dpdk-dev] [PATCH 2/2] kni: set default carrier state to 'off' Dan Gora
2018-09-18 16:15   ` Ferruh Yigit
2018-09-18 16:48     ` Ferruh Yigit
2018-09-18 18:34       ` Dan Gora
2018-09-19 19:55 ` [dpdk-dev] [PATCH v2 0/5] kni: add API to set link status on kernel interface Dan Gora
2018-09-19 19:55   ` [dpdk-dev] [PATCH v2 1/5] " Dan Gora
2018-09-26 13:59     ` Ferruh Yigit
2018-09-26 14:55       ` Dan Gora
2018-09-26 16:42         ` Ferruh Yigit
2018-09-26 18:56           ` Dan Gora
2018-09-27 11:35             ` Ferruh Yigit
2018-09-27 15:40               ` Dan Gora
2018-09-27 21:49                 ` Ferruh Yigit
2018-09-27 23:05                   ` Dan Gora
2018-09-27 23:44                     ` Ferruh Yigit
2018-09-27 23:51                       ` Dan Gora
2018-09-28  8:02                         ` Igor Ryzhov
2018-09-28  8:03                         ` Ferruh Yigit
2018-10-03 19:07                           ` Dan Gora
2018-10-10 14:09                             ` Ferruh Yigit
2018-10-10 14:57                               ` Dan Gora
2018-09-19 19:55   ` [dpdk-dev] [PATCH v2 2/5] kni: set default carrier state to 'off' Dan Gora
2018-09-26 13:59     ` Ferruh Yigit
2018-09-19 19:55   ` Dan Gora [this message]
2018-09-26 14:00     ` [dpdk-dev] [PATCH v2 3/5] examples/kni: monitor and update link status continually Ferruh Yigit
2018-09-26 19:16       ` Dan Gora
2018-09-27 11:54         ` Ferruh Yigit
2018-09-19 19:55   ` [dpdk-dev] [PATCH v2 4/5] examples/kni: add log msgs to show and clear stats Dan Gora
2018-09-26 14:00     ` Ferruh Yigit
2018-09-19 19:55   ` [dpdk-dev] [PATCH v2 5/5] examples/kni: improve zeroing statistics Dan Gora
2018-09-26 14:01     ` Ferruh Yigit
2018-09-26 14:48       ` Dan Gora
2018-09-27 11:40         ` Ferruh Yigit
2018-09-27 15:53           ` Dan Gora
2018-09-27 22:04             ` Ferruh Yigit
2018-09-27 22:40               ` Dan Gora
2018-09-27  0:32 ` [dpdk-dev] [PATCH v3 0/6] kni: add API to set link status on kernel interface Dan Gora
2018-09-27  0:32   ` [dpdk-dev] [PATCH v3 1/6] " Dan Gora
2018-09-27  0:32   ` [dpdk-dev] [PATCH v3 2/6] kni: add link status test Dan Gora
2018-09-27  0:32   ` [dpdk-dev] [PATCH v3 3/6] kni: set default carrier state to 'off' Dan Gora
2018-09-27  0:32   ` [dpdk-dev] [PATCH v3 4/6] examples/kni: monitor and update link status continually Dan Gora
2018-09-27  0:32   ` [dpdk-dev] [PATCH v3 5/6] examples/kni: add log msgs to show and clear stats Dan Gora
2018-09-27  0:32   ` [dpdk-dev] [PATCH v3 6/6] examples/kni: improve zeroing statistics Dan Gora
2018-10-10 14:16   ` [dpdk-dev] [PATCH v3 0/6] kni: add API to set link status on kernel interface Ferruh Yigit
2018-10-10 15:01     ` Dan Gora
2018-10-10 23:00       ` Ferruh Yigit
2018-10-10 23:36         ` Dan Gora
2018-10-17  1:04 ` [dpdk-dev] [PATCH v4 " Dan Gora
2018-10-17 15:29   ` Ferruh Yigit
2018-10-17  1:04 ` [dpdk-dev] [PATCH v4 1/6] " Dan Gora
2018-10-18 13:44   ` Ferruh Yigit
2018-10-18 19:00     ` Dan Gora
2018-10-17  1:04 ` [dpdk-dev] [PATCH v4 2/6] kni: add link status test Dan Gora
2018-10-17  1:04 ` [dpdk-dev] [PATCH v4 3/6] kni: set default carrier state of interface Dan Gora
2018-10-17 15:20   ` Ferruh Yigit
2018-10-17  1:04 ` [dpdk-dev] [PATCH v4 4/6] examples/kni: monitor and update link status continually Dan Gora
2018-10-17  1:04 ` [dpdk-dev] [PATCH v4 5/6] examples/kni: add log msgs to show and clear stats Dan Gora
2018-10-17  1:04 ` [dpdk-dev] [PATCH v4 6/6] examples/kni: improve zeroing statistics Dan Gora
2018-10-19  0:23 ` [dpdk-dev] [PATCH v5 0/5] kni: add API to set link status on kernel interface Dan Gora
2018-10-19  0:23   ` [dpdk-dev] [PATCH v5 1/5] " Dan Gora
2018-10-19  0:23   ` [dpdk-dev] [PATCH v5 2/5] kni: set default carrier state of interface Dan Gora
2018-10-19  0:23   ` [dpdk-dev] [PATCH v5 3/5] examples/kni: monitor and update link status continually Dan Gora
2018-10-22 12:51     ` Ferruh Yigit
2018-10-22 20:04       ` Dan Gora
2018-10-19  0:23   ` [dpdk-dev] [PATCH v5 4/5] examples/kni: add log msgs to show and clear stats Dan Gora
2018-10-19  0:23   ` [dpdk-dev] [PATCH v5 5/5] examples/kni: improve zeroing statistics Dan Gora
2018-10-22 13:03   ` [dpdk-dev] [PATCH v5 0/5] kni: add API to set link status on kernel interface Ferruh Yigit
2018-10-22 13:08     ` Thomas Monjalon
2018-10-22 13:14       ` Ferruh Yigit
2018-10-22 13:18         ` Thomas Monjalon
2018-10-24 20:27 ` [dpdk-dev] [PATCH v6 " Dan Gora
2018-10-24 20:27   ` [dpdk-dev] [PATCH v6 1/5] " Dan Gora
2018-10-24 20:27   ` [dpdk-dev] [PATCH v6 2/5] kni: set default carrier state of interface Dan Gora
2018-10-24 20:27   ` [dpdk-dev] [PATCH v6 3/5] examples/kni: monitor and update link status continually Dan Gora
2018-10-24 20:27   ` [dpdk-dev] [PATCH v6 4/5] examples/kni: add log msgs to show and clear stats Dan Gora
2018-10-24 20:46     ` Stephen Hemminger
2018-10-24 20:56       ` Dan Gora
2018-10-24 21:17         ` Stephen Hemminger
2018-10-24 21:45           ` Dan Gora
2018-10-24 20:27   ` [dpdk-dev] [PATCH v6 5/5] examples/kni: improve zeroing statistics Dan Gora
2018-10-24 22:26 ` [dpdk-dev] [PATCH v7 0/5] kni: add API to set link status on kernel interface Dan Gora
2018-10-24 22:26   ` [dpdk-dev] [PATCH v7 1/5] " Dan Gora
2018-10-24 22:26   ` [dpdk-dev] [PATCH v7 2/5] kni: set default carrier state of interface Dan Gora
2018-10-24 22:26   ` [dpdk-dev] [PATCH v7 3/5] examples/kni: monitor and update link status continually Dan Gora
2018-10-24 22:26   ` [dpdk-dev] [PATCH v7 4/5] examples/kni: add log msgs to show and clear stats Dan Gora
2018-10-24 22:26   ` [dpdk-dev] [PATCH v7 5/5] examples/kni: improve zeroing statistics Dan Gora
2018-10-25 12:30   ` [dpdk-dev] [PATCH v7 0/5] kni: add API to set link status on kernel interface Ferruh Yigit
2018-10-26 17:43     ` Thomas Monjalon

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