From: Xuan Ding <xuan.d...@intel.com>
This patch fixes the missing virtio net header copy in sync
dequeue path caused by refactoring, which affects dequeue
offloading.
Fixes: 6d823bb302c7("vhost: prepare sync for descriptor to mbuf refactoring")
Signed-off-by: Xuan Ding <xuan.d...@intel.com>
---
lib/vhost/virtio_net.c | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/lib/vhost/virtio_net.c b/lib/vhost/virtio_net.c
index 68a26eb17d..d5a9f7c691 100644
--- a/lib/vhost/virtio_net.c
+++ b/lib/vhost/virtio_net.c
@@ -2635,9 +2635,17 @@ desc_to_mbuf(struct virtio_net *dev, struct
vhost_virtqueue *vq,
buf_iova + buf_offset, cpy_len,
false) < 0)
goto error;
} else {
- sync_fill_seg(dev, vq, cur, mbuf_offset,
- buf_addr + buf_offset,
- buf_iova + buf_offset, cpy_len, false);
+ if (hdr && cur == m) {
+ rte_memcpy(rte_pktmbuf_mtod_offset(cur, void *,
mbuf_offset),
+ (void *)((uintptr_t)(buf_addr +
buf_offset)),
+ cpy_len);
+ vhost_log_cache_write_iova(dev, vq, buf_iova +
buf_offset, cpy_len);
+ PRINT_PACKET(dev, (uintptr_t)(buf_addr +
buf_offset), cpy_len, 0);
+ } else {
+ sync_fill_seg(dev, vq, cur, mbuf_offset,
+ buf_addr + buf_offset,
+ buf_iova + buf_offset, cpy_len, false);
+ }
}
mbuf_avail -= cpy_len;
--
2.17.1
