[dpdk-dev] [PATCH] examples: fix not all queues drained in l3fwd-*

[dpdk-dev] [PATCH] examples: fix not all queues drained in l3fwd-*

[Tomasz Kulasek]

In l3fwd-acl and l3fwd-power not all tx ports was included in tx_port_id
array, used to periodically drain only available ports. This caused that
some packets can remain in buffer when application stops to receiving
packets or when size of burst is small.

Fixes: e2366e74e029 ("examples: use buffered Tx")

Signed-off-by: Tomasz Kulasek <tomaszx.kulasek@intel.com>
---
 examples/l3fwd-acl/main.c   |    6 +-----
 examples/l3fwd-power/main.c |    6 +-----
 2 files changed, 2 insertions(+), 10 deletions(-)

diff --git a/examples/l3fwd-acl/main.c b/examples/l3fwd-acl/main.c
index 3a895b7..55ee337 100644
--- a/examples/l3fwd-acl/main.c
+++ b/examples/l3fwd-acl/main.c
@@ -1893,7 +1893,6 @@ main(int argc, char **argv)
 	unsigned lcore_id;
 	uint32_t n_tx_queue, nb_lcores;
 	uint8_t portid, nb_rx_queue, queue, socketid;
-	uint8_t nb_tx_port;
 
 	/* init EAL */
 	ret = rte_eal_init(argc, argv);
@@ -1926,7 +1925,6 @@ main(int argc, char **argv)
 		rte_exit(EXIT_FAILURE, "app_acl_init failed\n");
 
 	nb_lcores = rte_lcore_count();
-	nb_tx_port = 0;
 
 	/* initialize all ports */
 	for (portid = 0; portid < nb_ports; portid++) {
@@ -2008,12 +2006,10 @@ main(int argc, char **argv)
 			qconf->tx_queue_id[portid] = queueid;
 			queueid++;
 
-			qconf->n_tx_port = nb_tx_port;
 			qconf->tx_port_id[qconf->n_tx_port] = portid;
+			qconf->n_tx_port++;
 		}
 		printf("\n");
-
-		nb_tx_port++;
 	}
 
 	for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
diff --git a/examples/l3fwd-power/main.c b/examples/l3fwd-power/main.c
index e7ebe30..2af7731 100644
--- a/examples/l3fwd-power/main.c
+++ b/examples/l3fwd-power/main.c
@@ -1546,7 +1546,6 @@ main(int argc, char **argv)
 	uint32_t n_tx_queue, nb_lcores;
 	uint32_t dev_rxq_num, dev_txq_num;
 	uint8_t portid, nb_rx_queue, queue, socketid;
-	uint8_t nb_tx_port;
 
 	/* catch SIGINT and restore cpufreq governor to ondemand */
 	signal(SIGINT, signal_exit_now);
@@ -1582,7 +1581,6 @@ main(int argc, char **argv)
 		rte_exit(EXIT_FAILURE, "check_port_config failed\n");
 
 	nb_lcores = rte_lcore_count();
-	nb_tx_port = 0;
 
 	/* initialize all ports */
 	for (portid = 0; portid < nb_ports; portid++) {
@@ -1675,12 +1673,10 @@ main(int argc, char **argv)
 			qconf->tx_queue_id[portid] = queueid;
 			queueid++;
 
-			qconf->n_tx_port = nb_tx_port;
 			qconf->tx_port_id[qconf->n_tx_port] = portid;
+			qconf->n_tx_port++;
 		}
 		printf("\n");
-
-		nb_tx_port++;
 	}
 
 	for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
-- 
1.7.9.5

Re: [dpdk-dev] [PATCH] examples: fix not all queues drained in l3fwd-*

[Thomas Monjalon]

> In l3fwd-acl and l3fwd-power not all tx ports was included in tx_port_id
> array, used to periodically drain only available ports. This caused that
> some packets can remain in buffer when application stops to receiving
> packets or when size of burst is small.
> 
> Fixes: e2366e74e029 ("examples: use buffered Tx")
> 
> Signed-off-by: Tomasz Kulasek <tomaszx.kulasek@intel.com>

Applied, thanks