This patch enables packed virtqueue support for vhost.
Testpmd (virtio-user) + vhost_net shows about 2.6% improvemetn on TX
PPS:
Before: 5.75Mpps
After : 5.90Mpps
Signed-off-by: Jason Wang <jasowang@xxxxxxxxxx>
---
drivers/vhost/vhost.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
index bb3f8bb763b9..5483eea84a5c 100644
--- a/drivers/vhost/vhost.h
+++ b/drivers/vhost/vhost.h
@@ -326,7 +326,8 @@ enum {
(1ULL << VIRTIO_RING_F_EVENT_IDX) |
(1ULL << VHOST_F_LOG_ALL) |
(1ULL << VIRTIO_F_ANY_LAYOUT) |
- (1ULL << VIRTIO_F_VERSION_1)
+ (1ULL << VIRTIO_F_VERSION_1) |
+ (1ULL << VIRTIO_F_RING_PACKED)
};
static inline bool vhost_has_feature(struct vhost_virtqueue *vq, int bit)
--
2.18.1
