[RFC v9 03/11] vhost/net: pass net specific struct pointer

Eugenio Pérez
2020-06-19T18:25:16Z

In preparation for further cleanup, pass net specific pointer
to ubuf callbacks so we can move net specific fields
out to net structures.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
---
drivers/vhost/net.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index e992decfec53..81900ce673b4 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -94,7 +94,7 @@ struct vhost_net_ubuf_ref {
*/
atomic_t refcount;
wait_queue_head_t wait;
- struct vhost_virtqueue *vq;
+ struct vhost_net_virtqueue *nvq;
};

#define VHOST_NET_BATCH 64
@@ -231,7 +231,7 @@ static void vhost_net_enable_zcopy(int vq)
}

static struct vhost_net_ubuf_ref *
-vhost_net_ubuf_alloc(struct vhost_virtqueue *vq, bool zcopy)
+vhost_net_ubuf_alloc(struct vhost_net_virtqueue *nvq, bool zcopy)
{
struct vhost_net_ubuf_ref *ubufs;
/* No zero copy backend? Nothing to count. */
@@ -242,7 +242,7 @@ vhost_net_ubuf_alloc(struct vhost_virtqueue *vq, bool zcopy)
return ERR_PTR(-ENOMEM);
atomic_set(&ubufs->refcount, 1);
init_waitqueue_head(&ubufs->wait);
- ubufs->vq = vq;
+ ubufs->nvq = nvq;
return ubufs;
}

@@ -384,13 +384,13 @@ static void vhost_zerocopy_signal_used(struct vhost_net *net,
static void vhost_zerocopy_callback(struct ubuf_info *ubuf, bool success)
{
struct vhost_net_ubuf_ref *ubufs = ubuf->ctx;
- struct vhost_virtqueue *vq = ubufs->vq;
+ struct vhost_net_virtqueue *nvq = ubufs->nvq;
int cnt;

rcu_read_lock_bh();

/* set len to mark this desc buffers done DMA */
- vq->heads[ubuf->desc].len = success ?
+ nvq->vq.heads[ubuf->desc].len = success ?
VHOST_DMA_DONE_LEN : VHOST_DMA_FAILED_LEN;
cnt = vhost_net_ubuf_put(ubufs);

@@ -402,7 +402,7 @@ static void vhost_zerocopy_callback(struct ubuf_info *ubuf, bool success)
* less than 10% of times).
*/
if (cnt <= 1 || !(cnt % 16))
- vhost_poll_queue(&vq->poll);
+ vhost_poll_queue(&nvq->vq.poll);

rcu_read_unlock_bh();
}
@@ -1526,7 +1526,7 @@ static long vhost_net_set_backend(struct vhost_net *n, unsigned index, int fd)
/* start polling new socket */
oldsock = vhost_vq_get_backend(vq);
if (sock != oldsock) {
- ubufs = vhost_net_ubuf_alloc(vq,
+ ubufs = vhost_net_ubuf_alloc(nvq,
sock && vhost_sock_zcopy(sock));
if (IS_ERR(ubufs)) {
r = PTR_ERR(ubufs);
--
2.18.1