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From: linhaifeng <haifeng.lin@huawei.com>
To: <dev@dpdk.org>
Subject: [dpdk-dev] [PATCH] lib/librte_vhost:fix can't send packet anymore after mempool is full again
Date: Fri, 20 Mar 2015 11:54:02 +0800
Message-ID: <1426823642-27360-1-git-send-email-haifeng.lin@huawei.com> (raw)

From: Linhaifeng <haifeng.lin@huawei.com>

When failed to malloc buffer from mempool we just update last_used_idx but
not used->idx so after many times vhost thought have handle all packets
but virtio_net thought vhost have not handle all packets and will not
update avail->idx.

Signed-off-by: Linhaifeng <haifeng.lin@huawei.com>
 lib/librte_vhost/vhost_rxtx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/librte_vhost/vhost_rxtx.c b/lib/librte_vhost/vhost_rxtx.c
index 535c7a1..93a8fff 100644
--- a/lib/librte_vhost/vhost_rxtx.c
+++ b/lib/librte_vhost/vhost_rxtx.c
@@ -609,7 +609,7 @@ rte_vhost_dequeue_burst(struct virtio_net *dev, uint16_t queue_id,
 		if (unlikely(m == NULL)) {
 				"Failed to allocate memory for mbuf.\n");
-			return entry_success;
+			goto finish;
 		seg_offset = 0;
 		seg_avail = m->buf_len - RTE_PKTMBUF_HEADROOM;
@@ -721,6 +721,7 @@ rte_vhost_dequeue_burst(struct virtio_net *dev, uint16_t queue_id,
 	vq->used->idx += entry_success;
 	/* Kick guest if required. */

             reply	other threads:[~2015-03-20  3:55 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-20  3:54 linhaifeng [this message]
2015-03-20  6:36 ` Linhaifeng
2015-03-20  7:28   ` Ouyang, Changchun
2015-03-21  3:58     ` Linhaifeng

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