[19/28] vhost: add index field in vhost virtqueues
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Commit Message
From: Stefan Hajnoczi <stefanha@redhat.com>
Currently, the only way of determining a struct vhost_virtqueue's index
is to search struct virtio_net->virtqueue[] for its address. Stash the
index in struct vhost_virtqueue so we won't have to search the array.
This new field will be used by virtio-vhost-user.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---
lib/librte_vhost/vhost.c | 2 ++
lib/librte_vhost/vhost.h | 1 +
2 files changed, 3 insertions(+)
@@ -407,6 +407,8 @@ init_vring_queue(struct virtio_net *dev, uint32_t vring_idx)
memset(vq, 0, sizeof(struct vhost_virtqueue));
+ vq->vring_idx = vring_idx;
+
vq->kickfd = VIRTIO_UNINITIALIZED_EVENTFD;
vq->callfd = VIRTIO_UNINITIALIZED_EVENTFD;
@@ -107,6 +107,7 @@ struct vhost_virtqueue {
struct vring_packed_desc_event *device_event;
};
uint32_t size;
+ uint32_t vring_idx;
uint16_t last_avail_idx;
uint16_t last_used_idx;