virtio: fix Rx mbuf initialization

The virtio driver was not initializing all the fields in
the receive mbuf. This would cause bugs where previous usage
of mbuf would leave stale TCI and offload flags.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>

diff --git a/drivers/net/virtio/virtio_rxtx.c b/drivers/net/virtio/virtio_rxtx.c
index 5770fa2..466fee6 100644 (file)
--- a/drivers/net/virtio/virtio_rxtx.c
+++ b/drivers/net/virtio/virtio_rxtx.c
@@ -611,6 +611,8 @@ virtio_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
 
                rxm->port = rxvq->port_id;
                rxm->data_off = RTE_PKTMBUF_HEADROOM;
+               rxm->ol_flags = 0;
+               rxm->vlan_tci = 0;
 
                rxm->nb_segs = 1;
                rxm->next = NULL;
@@ -731,6 +733,8 @@ virtio_recv_mergeable_pkts(void *rx_queue,
                rxm->data_off = RTE_PKTMBUF_HEADROOM;
                rxm->nb_segs = seg_num;
                rxm->next = NULL;
+               rxm->ol_flags = 0;
+               rxm->vlan_tci = 0;
                rxm->pkt_len = (uint32_t)(len[0] - hdr_size);
                rxm->data_len = (uint16_t)(len[0] - hdr_size);