[dpdk-dev] [PATCH 1/2] net/ixgbe: fix mbufs leakage during Rx queue release

[Yury Kylulin]

For the vector PMD release all mbufs from the Rx queue if no packets
received after device start.

Fixes: 11b220c6498d ("ixgbe: fix release queue mbufs")

Signed-off-by: Yury Kylulin <yury.kylulin at intel.com>
---
 drivers/net/ixgbe/ixgbe_rxtx_vec_common.h | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ixgbe/ixgbe_rxtx_vec_common.h b/drivers/net/ixgbe/ixgbe_rxtx_vec_common.h
index 62b8201..3c3c009 100644
--- a/drivers/net/ixgbe/ixgbe_rxtx_vec_common.h
+++ b/drivers/net/ixgbe/ixgbe_rxtx_vec_common.h
@@ -204,8 +204,20 @@ _ixgbe_rx_queue_release_mbufs_vec(struct ixgbe_rx_queue *rxq)
 		return;
 
 	/* free all mbufs that are valid in the ring */
-	for (i = rxq->rx_tail; i != rxq->rxrearm_start; i = (i + 1) & mask)
-		rte_pktmbuf_free_seg(rxq->sw_ring[i].mbuf);
+	if (rxq->rxrearm_nb == 0) {
+		for (i = 0; i < rxq->nb_rx_desc; i++) {
+			if (rxq->sw_ring[i].mbuf != NULL)
+				rte_pktmbuf_free_seg(rxq->sw_ring[i].mbuf);
+		}
+	} else {
+		for (i = rxq->rx_tail;
+		     i != rxq->rxrearm_start;
+		     i = (i + 1) & mask) {
+			if (rxq->sw_ring[i].mbuf != NULL)
+				rte_pktmbuf_free_seg(rxq->sw_ring[i].mbuf);
+		}
+	}
+
 	rxq->rxrearm_nb = rxq->nb_rx_desc;
 
 	/* set all entries to NULL */
-- 
2.7.4