[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