From: Linhaifeng <haifeng....@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 at 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)) {
RTE_LOG(ERR, VHOST_DATA,
"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,
entry_success++;
}
+finish:
rte_compiler_barrier();
vq->used->idx += entry_success;
/* Kick guest if required. */
--
1.8.5.2.msysgit.0
