[dpdk-dev] [RFC PATCH 2/2] examples/l3fwd: add check of Rx and Tx descriptors number

[Andrew Rybchenko]

From: Roman Zhukov <Roman.Zhukov at oktetlabs.ru>

Signed-off-by: Roman Zhukov <Roman.Zhukov at oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko at solarflare.com>
---
 examples/l3fwd/main.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/examples/l3fwd/main.c b/examples/l3fwd/main.c
index a50d628..8794154 100644
--- a/examples/l3fwd/main.c
+++ b/examples/l3fwd/main.c
@@ -522,9 +522,9 @@ static const struct option lgopts[] = {
  * value of 8192
  */
 #define NB_MBUF RTE_MAX(	\
-	(nb_ports*nb_rx_queue*RTE_TEST_RX_DESC_DEFAULT +	\
+	(nb_ports*nb_rx_queue*nb_rxd +				\
 	nb_ports*nb_lcores*MAX_PKT_BURST +			\
-	nb_ports*n_tx_queue*RTE_TEST_TX_DESC_DEFAULT +		\
+	nb_ports*n_tx_queue*nb_txd +				\
 	nb_lcores*MEMPOOL_CACHE_SIZE),				\
 	(unsigned)8192)
 
@@ -918,6 +918,13 @@ main(int argc, char **argv)
 				"Cannot configure device: err=%d, port=%d\n",
 				ret, portid);
 
+		ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
+						       &nb_txd);
+		if (ret < 0)
+			rte_exit(EXIT_FAILURE,
+				"rte_eth_dev_adjust_nb_desc: err=%d, port=%d\n",
+				ret, portid);
+
 		rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
 		print_ethaddr(" Address:", &ports_eth_addr[portid]);
 		printf(", ");
-- 
2.9.3