[dpdk-dev] [PATCH v3 7/7] net/mlx4: remove empty Tx segment support

[Matan Azrad]

Move empty segment case processing to debug mode.

Signed-off-by: Matan Azrad <matan at mellanox.com>
---
 drivers/net/mlx4/mlx4_rxtx.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/mlx4/mlx4_rxtx.c b/drivers/net/mlx4/mlx4_rxtx.c
index 482c399..c005a41 100644
--- a/drivers/net/mlx4/mlx4_rxtx.c
+++ b/drivers/net/mlx4/mlx4_rxtx.c
@@ -305,15 +305,18 @@ static int handle_multi_segs(struct rte_mbuf *buf,
 			return -1;
 		}
 #endif /* NDEBUG */
-		if (likely(sbuf->data_len)) {
-			byte_count = rte_cpu_to_be_32(sbuf->data_len);
-		} else {
+		byte_count = rte_cpu_to_be_32(sbuf->data_len);
+#ifndef NDEBUG
+		if (unlikely(!sbuf->data_len)) {
+			DEBUG("%p: Empty segment is not allowed",
+					(void *)txq);
 			/*
 			 * Zero length segment is treated as inline segment
 			 * with zero data.
 			 */
 			byte_count = RTE_BE32(0x80000000);
 		}
+#endif /* NDEBUG */
 		/*
 		 * If the data segment is not at the beginning of a
 		 * Tx basic block (TXBB) then write the byte count,
-- 
1.8.3.1