2 files changed, 39 insertions, 14 deletions

diff --git a/examples/exception_path/Makefile b/examples/exception_path/Makefile
index 4b6e0717..d16f74f6 100644
--- a/examples/exception_path/Makefile
+++ b/examples/exception_path/Makefile
@@ -33,18 +33,11 @@ ifeq ($(RTE_SDK),)
 $(error "Please define RTE_SDK environment variable")
 endif
 
-# Default target, can be overriden by command line or environment
+# Default target, can be overridden by command line or environment
 RTE_TARGET ?= x86_64-native-linuxapp-gcc
 
 include $(RTE_SDK)/mk/rte.vars.mk
 
-ifneq ($(CONFIG_RTE_EXEC_ENV),"linuxapp")
-$(info This application can only operate in a linuxapp environment, \
-please change the definition of the RTE_TARGET environment variable)
-all:
-clean:
-else
-
 # binary name
 APP = exception_path
 
@@ -55,5 +48,3 @@ CFLAGS += -O3
 CFLAGS += $(WERROR_FLAGS)
 
 include $(RTE_SDK)/mk/rte.extapp.mk
-
-endif
diff --git a/examples/exception_path/main.c b/examples/exception_path/main.c
index 89bf1cc0..e551e6d1 100644
--- a/examples/exception_path/main.c
+++ b/examples/exception_path/main.c
@@ -42,8 +42,10 @@
 #include <getopt.h>
 
 #include <netinet/in.h>
-#include <linux/if.h>
+#include <net/if.h>
+#ifdef RTE_EXEC_ENV_LINUXAPP
 #include <linux/if_tun.h>
+#endif
 #include <fcntl.h>
 #include <sys/ioctl.h>
 #include <unistd.h>
@@ -65,7 +67,6 @@
 #include <rte_debug.h>
 #include <rte_ether.h>
 #include <rte_ethdev.h>
-#include <rte_log.h>
 #include <rte_mempool.h>
 #include <rte_mbuf.h>
 #include <rte_string_fns.h>
@@ -182,6 +183,7 @@ signal_handler(int signum)
 	}
 }
 
+#ifdef RTE_EXEC_ENV_LINUXAPP
 /*
  * Create a tap network interface, or use existing one with same name.
  * If name[0]='\0' then a name is automatically assigned and returned in name.
@@ -214,6 +216,29 @@ static int tap_create(char *name)
 
 	return fd;
 }
+#else
+/*
+ * Find a free tap network interface, or create a new one.
+ * The name is automatically assigned and returned in name.
+ */
+static int tap_create(char *name)
+{
+	int i, fd = -1;
+	char devname[PATH_MAX];
+
+	for (i = 0; i < 255; i++) {
+		snprintf(devname, sizeof(devname), "/dev/tap%d", i);
+		fd = open(devname, O_RDWR);
+		if (fd >= 0 || errno != EBUSY)
+			break;
+	}
+
+	if (name)
+		snprintf(name, IFNAMSIZ, "tap%d", i);
+
+	return fd;
+}
+#endif
 
 /* Main processing loop */
 static int
@@ -422,6 +447,8 @@ static void
 init_port(uint8_t port)
 {
 	int ret;
+	uint16_t nb_rxd = NB_RXD;
+	uint16_t nb_txd = NB_TXD;
 
 	/* Initialise device and RX/TX queues */
 	PRINT_INFO("Initialising port %u ...", (unsigned)port);
@@ -431,14 +458,21 @@ init_port(uint8_t port)
 		FATAL_ERROR("Could not configure port%u (%d)",
 		            (unsigned)port, ret);
 
-	ret = rte_eth_rx_queue_setup(port, 0, NB_RXD, rte_eth_dev_socket_id(port),
+	ret = rte_eth_dev_adjust_nb_rx_tx_desc(port, &nb_rxd, &nb_txd);
+	if (ret < 0)
+		FATAL_ERROR("Could not adjust number of descriptors for port%u (%d)",
+			    (unsigned)port, ret);
+
+	ret = rte_eth_rx_queue_setup(port, 0, nb_rxd,
+				rte_eth_dev_socket_id(port),
 				NULL,
 				pktmbuf_pool);
 	if (ret < 0)
 		FATAL_ERROR("Could not setup up RX queue for port%u (%d)",
 		            (unsigned)port, ret);
 
-	ret = rte_eth_tx_queue_setup(port, 0, NB_TXD, rte_eth_dev_socket_id(port),
+	ret = rte_eth_tx_queue_setup(port, 0, nb_txd,
+				rte_eth_dev_socket_id(port),
 				NULL);
 	if (ret < 0)
 		FATAL_ERROR("Could not setup up TX queue for port%u (%d)",