[dpdk-dev] [PATCH v3 7/7] net/mlx4: remove empty Tx segment support
Matan Azrad
matan at mellanox.com
Mon Oct 30 11:07:29 CET 2017
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
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