examples/l3fwd: share queue size variables

[ upstream commit e7a7add ]

nb_rxd and nb_txd are used in polling mode and event mode of
operation. nb_rxd and nb_txd are already global in polling mode
but are not visible to event mode code. Make them visible to all
parts of the application.

Signed-off-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Reviewed-by: Kathleen Capella <kathleen.capella@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Tested-by: Yingya Han < yingyax.han@intel.com>

examples/l3fwd/l3fwd.h

@@ -81,6 +81,10 @@ struct lcore_conf {
 
 extern volatile bool force_quit;
 
+/* RX and TX queue depths */
+extern uint16_t nb_rxd;
+extern uint16_t nb_txd;
+
 /* ethernet addresses of ports */
 extern uint64_t dest_eth_addr[RTE_MAX_ETHPORTS];
 extern struct rte_ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];

examples/l3fwd/l3fwd_event.c

@@ -43,8 +43,6 @@ l3fwd_eth_dev_port_setup(struct rte_eth_conf *port_conf)
 {
 	struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc();
 	uint16_t nb_ports = rte_eth_dev_count_avail();
-	uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
-	uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
 	unsigned int nb_lcores = rte_lcore_count();
 	struct rte_eth_conf local_port_conf;
 	struct rte_eth_dev_info dev_info;

examples/l3fwd/main.c

@@ -53,9 +53,8 @@
 
 #define MAX_LCORE_PARAMS 1024
 
-/* Static global variables used within this file. */
-static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
-static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
+uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
+uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
 
 /**< Ports set in promiscuous mode off by default. */
 static int promiscuous_on;