l4fwd: allow to specify TX payload contents for rxtx mode

Introduce a new command-line option that specifies the file
with response payload.

Change-Id: I1a208eeebe1d87970da23956fb08949abf601422
Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/examples/l4fwd/netbe.h b/examples/l4fwd/netbe.h
index 134ce3d..ebb1345 100644
--- a/examples/l4fwd/netbe.h
+++ b/examples/l4fwd/netbe.h
@@ -251,6 +251,13 @@ struct lcore_prm {
 	struct netfe_lcore_prm fe;
 };
 
+struct tx_content {
+	size_t sz;
+	uint8_t *data;
+};
+
+extern struct tx_content tx_content;
+
 /*
  * debug/trace macros.
  */