[dpdk-dev] [PATCH] net/virtio: fix mbuf data offset for simple Rx function
Olivier Matz
olivier.matz at 6wind.com
Mon Feb 12 14:16:36 CET 2018
The mbuf->data_off was was not properly set for the first received
mbufs. Fix this by setting it in virtqueue_enqueue_recv_refill_simple(),
which is used to enqueue the first mbuf in the ring.
The function virtio_rxq_rearm_vec(), which is used to rearm the ring
with new mbufs, is valid and does not need to be updated.
Fixes: cab0461234e7 ("virtio: fill Rx avail ring with blank mbufs")
Cc: stable at dpdk.org
Signed-off-by: Olivier Matz <olivier.matz at 6wind.com>
---
drivers/net/virtio/virtio_rxtx_simple.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/virtio/virtio_rxtx_simple.c b/drivers/net/virtio/virtio_rxtx_simple.c
index 7247a0822..b1f610ffa 100644
--- a/drivers/net/virtio/virtio_rxtx_simple.c
+++ b/drivers/net/virtio/virtio_rxtx_simple.c
@@ -36,6 +36,7 @@ virtqueue_enqueue_recv_refill_simple(struct virtqueue *vq,
uint16_t desc_idx;
cookie->port = vq->rxq.port_id;
+ cookie->data_off = RTE_PKTMBUF_HEADROOM;
desc_idx = vq->vq_avail_idx & (vq->vq_nentries - 1);
dxp = &vq->vq_descx[desc_idx];
--
2.11.0
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