[dpdk-dev] [PATCH 1/5] net/virtio: fix Tx desc cleanup for packed ring

Tiwei Bie tiwei.bie at intel.com
Tue Feb 19 11:59:47 CET 2019


We should try to cleanup at least the 'need' number of descs.

Fixes: 892dc798fa9c ("net/virtio: implement Tx path for packed queues")
Cc: stable at dpdk.org

Signed-off-by: Tiwei Bie <tiwei.bie at intel.com>
---
 drivers/net/virtio/virtio_rxtx.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/virtio/virtio_rxtx.c b/drivers/net/virtio/virtio_rxtx.c
index 4c701c514..b07ceac6d 100644
--- a/drivers/net/virtio/virtio_rxtx.c
+++ b/drivers/net/virtio/virtio_rxtx.c
@@ -1943,7 +1943,6 @@ virtio_xmit_pkts_packed(void *tx_queue, struct rte_mbuf **tx_pkts,
 
 		/* Positive value indicates it need free vring descriptors */
 		if (unlikely(need > 0)) {
-			need = RTE_MIN(need, (int)nb_pkts);
 			virtio_xmit_cleanup_packed(vq, need);
 			need = slots - vq->vq_free_cnt;
 			if (unlikely(need > 0)) {
-- 
2.17.1



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