[dpdk-stable] [PATCH v1] net/iavf: fix cannot release mbufs issue

[Ting Xu <ting.xu@intel.com>]

In the function _iavf_rx_queue_release_mbufs_vec to release rx mbufs,
rxq->rxrearm_nb is given the value of rx descriptor number at last.
However, since the process to release and allocate mbufs lacks the
initialization of rxrearm_nb, if we try to release mbufs next time, it
will return without releasing directly. In this patch, rxrearm_nb is
initialized to be zero in rx queue reset.

Fixes: 319c421f3890 ("net/avf: enable SSE Rx Tx")
Cc: stable@dpdk.org

Signed-off-by: Ting Xu <ting.xu@intel.com>
---
 drivers/net/iavf/iavf_rxtx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/iavf/iavf_rxtx.c b/drivers/net/iavf/iavf_rxtx.c
index baac5d65c8..8f43208c80 100644
--- a/drivers/net/iavf/iavf_rxtx.c
+++ b/drivers/net/iavf/iavf_rxtx.c
@@ -194,6 +194,7 @@ reset_rx_queue(struct iavf_rx_queue *rxq)
 	rxq->nb_rx_hold = 0;
 	rxq->pkt_first_seg = NULL;
 	rxq->pkt_last_seg = NULL;
+	rxq->rxrearm_nb = 0;
 }
 
 static inline void
-- 
2.17.1