[PATCH v2 02/21] net/ena: add assertion on Tx info mbuf

[Michal Krawczyk]

To make sure there is no outstanding mbuf in the reused Tx queue (due to
unproper cleanup, or some invalid logic on Tx path), the assertion was
added on the Tx path.

As it's being compiled out in the release version, it won't affect
the IO path performance.

Signed-off-by: Michal Krawczyk <mk at semihalf.com>
Reviewed-by: Dawid Gorecki <dgr at semihalf.com>
Reviewed-by: Shai Brandes <shaibran at amazon.com>
---
 drivers/net/ena/ena_ethdev.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c
index deaee30664..34fb43cb00 100644
--- a/drivers/net/ena/ena_ethdev.c
+++ b/drivers/net/ena/ena_ethdev.c
@@ -2661,6 +2661,7 @@ static int ena_xmit_mbuf(struct ena_ring *tx_ring, struct rte_mbuf *mbuf)
 	req_id = tx_ring->empty_tx_reqs[next_to_use];
 	tx_info = &tx_ring->tx_buffer_info[req_id];
 	tx_info->num_of_bufs = 0;
+	RTE_ASSERT(tx_info->mbuf == NULL);
 
 	ena_tx_map_mbuf(tx_ring, tx_info, mbuf, &push_header, &header_len);
 
-- 
2.25.1