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From: Muhammad Bilal <m.bilal@emumba.com>
To: declan.doherty@intel.com, tomasz.kantecki@intel.com,
	pbhagavatula@marvell.com, skori@marvell.com
Cc: dev@dpdk.org, Muhammad Bilal <m.bilal@emumba.com>
Subject: [dpdk-dev] [PATCH 2/5] examples/l2fwd-jobstats: free resources in case of error
Date: Tue, 19 May 2020 13:54:41 +0500
Message-ID: <20200519085444.4562-2-m.bilal@emumba.com> (raw)
In-Reply-To: <20200519085444.4562-1-m.bilal@emumba.com>

Freeing the resources and call rte_eal_cleanup in case of error exit.
Signed-off-by: Muhammad Bilal <m.bilal@emumba.com>
---
 examples/l2fwd-jobstats/main.c | 75 +++++++++++++++++++++++++++-------
 1 file changed, 60 insertions(+), 15 deletions(-)

diff --git a/examples/l2fwd-jobstats/main.c b/examples/l2fwd-jobstats/main.c
index 396fd89db..e74e16113 100644
--- a/examples/l2fwd-jobstats/main.c
+++ b/examples/l2fwd-jobstats/main.c
@@ -739,6 +739,18 @@ check_all_ports_link_status(uint32_t port_mask)
 	}
 }
 
+static void
+stop_and_close_eth_dev(uint16_t portid)
+{
+	RTE_ETH_FOREACH_DEV(portid) {
+		printf("Closing port %d...", portid);
+		rte_eth_dev_stop(portid);
+		rte_eth_dev_close(portid);
+		printf(" Done\n");
+	}
+	rte_eal_cleanup();
+}
+
 int
 main(int argc, char **argv)
 {
@@ -749,7 +761,8 @@ main(int argc, char **argv)
 	char name[RTE_JOBSTATS_NAMESIZE];
 	uint16_t nb_ports;
 	uint16_t nb_ports_available = 0;
-	uint16_t portid, last_port;
+	uint16_t portid = 0;
+	uint16_t last_port;
 	uint8_t i;
 
 	/* init EAL */
@@ -761,8 +774,10 @@ main(int argc, char **argv)
 
 	/* parse application arguments (after the EAL ones) */
 	ret = l2fwd_parse_args(argc, argv);
-	if (ret < 0)
+	if (ret < 0) {
+		stop_and_close_eth_dev(portid);
 		rte_exit(EXIT_FAILURE, "Invalid L2FWD arguments\n");
+	}
 
 	rte_timer_subsystem_init();
 
@@ -773,12 +788,16 @@ main(int argc, char **argv)
 	l2fwd_pktmbuf_pool =
 		rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF, 32,
 			0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
-	if (l2fwd_pktmbuf_pool == NULL)
+	if (l2fwd_pktmbuf_pool == NULL) {
+		stop_and_close_eth_dev(portid);
 		rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n");
+	}
 
 	nb_ports = rte_eth_dev_count_avail();
-	if (nb_ports == 0)
+	if (nb_ports == 0) {
+		stop_and_close_eth_dev(portid);
 		rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
+	}
 
 	/* reset l2fwd_dst_ports */
 	for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++)
@@ -820,8 +839,10 @@ main(int argc, char **argv)
 		       lcore_queue_conf[rx_lcore_id].n_rx_port ==
 		       l2fwd_rx_queue_per_lcore) {
 			rx_lcore_id++;
-			if (rx_lcore_id >= RTE_MAX_LCORE)
+			if (rx_lcore_id >= RTE_MAX_LCORE) {
+				stop_and_close_eth_dev(portid);
 				rte_exit(EXIT_FAILURE, "Not enough cores\n");
+			}
 		}
 
 		if (qconf != &lcore_queue_conf[rx_lcore_id])
@@ -852,32 +873,40 @@ main(int argc, char **argv)
 		fflush(stdout);
 
 		ret = rte_eth_dev_info_get(portid, &dev_info);
-		if (ret != 0)
+		if (ret != 0) {
+			stop_and_close_eth_dev(portid);
 			rte_exit(EXIT_FAILURE,
 				"Error during getting device (port %u) info: %s\n",
 				portid, strerror(-ret));
+		}
 
 		if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 			local_port_conf.txmode.offloads |=
 				DEV_TX_OFFLOAD_MBUF_FAST_FREE;
 		ret = rte_eth_dev_configure(portid, 1, 1, &local_port_conf);
-		if (ret < 0)
+		if (ret < 0) {
+			stop_and_close_eth_dev(portid);
 			rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%u\n",
 				  ret, portid);
+		}
 
 		ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
 						       &nb_txd);
-		if (ret < 0)
+		if (ret < 0) {
+			stop_and_close_eth_dev(portid);
 			rte_exit(EXIT_FAILURE,
 				 "Cannot adjust number of descriptors: err=%d, port=%u\n",
 				 ret, portid);
+		}
 
 		ret = rte_eth_macaddr_get(portid,
 					  &l2fwd_ports_eth_addr[portid]);
-		if (ret < 0)
+		if (ret < 0) {
+			stop_and_close_eth_dev(portid);
 			rte_exit(EXIT_FAILURE,
 				 "Cannot get MAC address: err=%d, port=%u\n",
 				 ret, portid);
+		}
 
 		/* init one RX queue */
 		fflush(stdout);
@@ -887,9 +916,11 @@ main(int argc, char **argv)
 					     rte_eth_dev_socket_id(portid),
 					     &rxq_conf,
 					     l2fwd_pktmbuf_pool);
-		if (ret < 0)
+		if (ret < 0) {
+			stop_and_close_eth_dev(portid);
 			rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup:err=%d, port=%u\n",
 				  ret, portid);
+		}
 
 		/* init one TX queue on each port */
 		txq_conf = dev_info.default_txconf;
@@ -898,39 +929,48 @@ main(int argc, char **argv)
 		ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
 				rte_eth_dev_socket_id(portid),
 				&txq_conf);
-		if (ret < 0)
+		if (ret < 0) {
+			stop_and_close_eth_dev(portid);
 			rte_exit(EXIT_FAILURE,
 			"rte_eth_tx_queue_setup:err=%d, port=%u\n",
 				ret, portid);
+		}
 
 		/* Initialize TX buffers */
 		tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
 				RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
 				rte_eth_dev_socket_id(portid));
-		if (tx_buffer[portid] == NULL)
+		if (tx_buffer[portid] == NULL) {
+			stop_and_close_eth_dev(portid);
 			rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n",
 					portid);
+		}
 
 		rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST);
 
 		ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid],
 				rte_eth_tx_buffer_count_callback,
 				&port_statistics[portid].dropped);
-		if (ret < 0)
+		if (ret < 0) {
+			stop_and_close_eth_dev(portid);
 			rte_exit(EXIT_FAILURE,
 			"Cannot set error callback for tx buffer on port %u\n",
 				 portid);
+		}
 
 		/* Start device */
 		ret = rte_eth_dev_start(portid);
-		if (ret < 0)
+		if (ret < 0) {
+			stop_and_close_eth_dev(portid);
 			rte_exit(EXIT_FAILURE, "rte_eth_dev_start:err=%d, port=%u\n",
 				  ret, portid);
+		}
 
 		printf("done:\n");
 
 		ret = rte_eth_promiscuous_enable(portid);
 		if (ret != 0) {
+			stop_and_close_eth_dev(portid);
 			rte_exit(EXIT_FAILURE,
 				 "rte_eth_promiscuous_enable:err=%s, port=%u\n",
 				 rte_strerror(-ret), portid);
@@ -952,6 +992,7 @@ main(int argc, char **argv)
 	}
 
 	if (!nb_ports_available) {
+		stop_and_close_eth_dev(portid);
 		rte_exit(EXIT_FAILURE,
 			"All available ports are disabled. Please set portmask.\n");
 	}
@@ -965,8 +1006,10 @@ main(int argc, char **argv)
 
 		rte_spinlock_init(&qconf->lock);
 
-		if (rte_jobstats_context_init(&qconf->jobs_context) != 0)
+		if (rte_jobstats_context_init(&qconf->jobs_context) != 0) {
+			stop_and_close_eth_dev(portid);
 			rte_panic("Jobs stats context for core %u init failed\n", lcore_id);
+		}
 
 		if (qconf->n_rx_port == 0) {
 			RTE_LOG(INFO, L2FWD,
@@ -985,6 +1028,7 @@ main(int argc, char **argv)
 				lcore_id, &l2fwd_flush_job, NULL);
 
 		if (ret < 0) {
+			stop_and_close_eth_dev(portid);
 			rte_exit(1, "Failed to reset flush job timer for lcore %u: %s",
 					lcore_id, rte_strerror(-ret));
 		}
@@ -1007,6 +1051,7 @@ main(int argc, char **argv)
 					&l2fwd_fwd_job, (void *)(uintptr_t)i);
 
 			if (ret < 0) {
+				stop_and_close_eth_dev(portid);
 				rte_exit(1, "Failed to reset lcore %u port %u job timer: %s",
 						lcore_id, qconf->rx_port_list[i], rte_strerror(-ret));
 			}
-- 
2.17.1


  reply	other threads:[~2020-05-19  8:55 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-19  8:54 [dpdk-dev] [PATCH 1/5] examples/l2fwd-event: " Muhammad Bilal
2020-05-19  8:54 ` Muhammad Bilal [this message]
2020-05-19  8:54 ` [dpdk-dev] [PATCH 3/5] examples/l2fwd-keepalive: " Muhammad Bilal
2020-05-19  8:54 ` [dpdk-dev] [PATCH 4/5] examples/l2fwd-cat: " Muhammad Bilal
2020-05-19  8:54 ` [dpdk-dev] [PATCH 5/5] examples/l2fwd-crypto: " Muhammad Bilal
2020-05-19  9:34 ` [dpdk-dev] [EXT] [PATCH 1/5] examples/l2fwd-event: " Sunil Kumar Kori
2020-06-02 12:27   ` Muhammad Bilal
2020-06-10 10:01     ` Sunil Kumar Kori
2020-06-15 12:00       ` Muhammad Bilal
2020-06-16  5:53         ` Sunil Kumar Kori
2020-06-16 10:14           ` Muhammad Bilal
2020-06-16 10:38             ` Sunil Kumar Kori
2020-06-16 11:47       ` Jakub Grajciar -X (jgrajcia - PANTHEON TECH SRO at Cisco)

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